How to Make a Baby Rump Shower Cake

July 21st, 2011 by Paula Ivancicts

Babies are so cute! Adults are always oohing and aahing over those bundles of joy! Especially their little feet! I recently noticed the baby rump cake trend popping up and thought it was a neat idea to create a cake with the illusion of a teeny baby sleeping under a blanket.

I recently volunteered to make a baby shower cake for a friend and decided to try this design on a practice cake. Since it was my first attempt, I was a little concerned about how to actually make the cake. Sometimes my plan seems workable until I actually attempt to make it with food items. I wasn’t totally confident that my ideas were going to match what I actually wanted to do.

I started by making crispy rice treats by following the instructions on the box of cereal. I placed the treats on a parchment paper-lined cookie sheet. I then lined one of the pan halves from the Sports Ball Pan Set with plastic wrap and packed the treats in the pan and leveled it off.

Rump Cake Base

I then flipped it out, peeled off the plastic wrap, and coated the bump with Decorator Icing to make a smoother surface for my fondant. I then covered it with White Fondant and made two mini banana-shaped pieces to create the legs for my cake. I also coated these with the icing.

Using the Natural Colors Multi-pack Fondant, I mixed some of the Light Brown and Dark Brown fondant to create the skin tone for my baby. It was easy to use! I just kneaded the colors together and rolled them out using confectioner’s sugar and the Perfect Height Rolling Pin. I used my Cutter/Embosser to cut the fondant and cover my pieces. Using my Fondant Smoother, I was able to cover the pieces and make a smooth surface.

I then took more of my treats and worked them into a flat peanut shape with a slightly larger portion at the top to create the feet. I covered them with the icing and fondant again using the fondant smoother to make the feet.

Rump Cake Feet

When done, I worked on creating the tiny little toes by rolling pieces of fondant into little balls. Once I created the sizes I wanted, I attached the toes with a brush and water, sort of bending the foot a little and using the veining tool from the Fondant and Gum Paste Set, I pressed in the wrinkles of the bottom of the feet, and propped them up on a butter knife.

I was now ready to start assembling my project. I started with an 8” cake circle and put a dab of icing on the board. I then attached the fondant covered baby bottom and legs on top of the icing to hold them in place.

Using the Fabric Fondant and Gum Paste Mold (the mold has a lot of neat shapes including buttons!), I created two strips using the widest section of the mold by pressing white fondant into the mold. These strips were the elastic leg sections of my diaper. I then laid the strips over the leg/diaper area and pushed them in slightly with my veining tool.

I cut the excess off with my Cutter/Embosser and then lifted the pieces, brushed them with water, and then laid them back down pushing the ends under with the tool. I then attached the feet using more Decorator Icing. It is easy to play around with the feet trying different positions! Don’t you want to just go up and tickle those toes???

Baby Rump Cake

Using Yellow Fondant from the Pastel Colors Multi-Pack, I rolled it out with confectioner’s sugar and the Wide Glide Rolling Pin. Using my Cutter/Embosser, I cut out a large square shape of fondant. I then created a diamond pattern on my blanket using the embosser wheel and a ruler. I then used the cutter wheel to make fringe on the blanket by cutting strips and cut the four corners of the blanket and then draped the blanket over the baby.

I lifted and moved the blanket until I was happy with how I had it positioned over the baby. It is easy to use different colors and patterns for the blankets or even use Rubber Ducky Icing Decorations.

After my first rump cake, I was more confident that I had my ideas down pat, that they were workable, and that I was ready to make a second rump cake presentable for a baby shower. My second cake used the pink from the Natural Colors Multi-Pack Fondant for the skin color following the same instructions above.

For the blue baby blanket, I decided to make a larger blanket using the blue fondant from the Pastel Colors Multi-Pack adding a little white and some other blue fondant I had made. I kneaded that, rolled it out and cut a square. Then I used the green fondant from the Pastel Colors Multi-Pack and pressed that in the rick rack section on the Fabric Fondant and Gum Paste Mold and attached that to the blue blanket with water. I used the embosser on this blanket too.

When I put this blanket on the rump, I used my fingers to curl up the corners of the fondant to give the blanket a little detail. I then put that cake on top of a chocolate iced cake decorated with blue and green Sugar Pearls on the sides.

I would cover the cake with fondant in the future, or at least the outline of the cake circle. When I went to remove the rump layer, my chocolate icing stuck to the bottom of the cake circle. Duh! I should have known better!!!

Baby Rump Cake

Note: I know some people may not like the idea of cutting into a baby cake, which is why I used the crispy treats. I was able to remove the blanket and take the “cake” apart to serve, or just serve the rounded rump portion. It was easy to serve by breaking up the treats; no cutting required. You can easily put a cake underneath that could be cut and served.

In the case of cakes, little girls are made of sugar and spice and all things nice….

Paula Ivancicts Paula is a Wilton Customer Service Key Account Rep and a Certified Wilton Method Instructor. She has been with Wilton since 2009. Her love of creating things and using Wilton products started in high school when she began making candy. Outside of Wilton, Paula enjoys family time with her husband and two daughters. She loves baking, decorating, and making candy for family, friends, and coworkers.

96 Replies

  1. Chandra says:

    this cake was amazing Paula! It looks great here, but it looked even better in person! This was truly an amazing cake..

  2. Paula Ivancicts says:

    Thank you Chandra! These were fun cakes to make!!! I enjoyed making them different and I have even come up with other ideas for future ones!

  3. Carol says:

    Although this is really cute, I don’t think it qualifies as a “cake”. It is just a huge rice krispy treat. Where’s the cake?

    • Paula Ivancicts says:

      Hi Carol!
      Thank you for replying! For my first attempt, I just did the cake topper. For my second one, I put it on top of a round chocolate cake. The topper can be removed and the cake underneath can be served.

  4. Carol says:

    Oh, never mind. It’s underneath. My bad.

  5. Susan J. Sias says:

    This cake sculpture is adorable Paula! Oodles of blanket possibilities!! Thank you so much for sharing!

    • Paula Ivancicts says:

      Hi Susan!
      Thank you for your comments! I’m glad you enjoyed it! Yes, I feel there are alot of possibilities for the blanket.

  6. shaz says:

    Cute cake but the first one that was your test was made with RKT. Was the 2nd one made with cake???


    • Paula Ivancicts says:

      Hi Shaz!
      Thank you for replying! I kept the “rump” section as cereal treats for both, but added a chocolate cake underneath the second project.

  7. becca says:

    these are horrible. they are ugly and its creepy. the very thought of cutting into a baby thats only 1/2 there anyway is sick. i mean seriously hacking into this and eating it? ewww

    • Paula Ivancicts says:

      Hi Becca!
      Thank you for replying! I can understand that not everyone will like this. My idea was to cut and serve the chocolate cake underneath and just use the “rump” as a topper.

    • annette says:

      RUMP ROW – I’ll take a dozen Half or whole it is a cake not a baby.

      Pauls – can you also make puppy rumps?

    • Vanessa says:

      It’s a freakin cake! Are you serious?!?! Stop being such a prude.

    • CHRISTINA says:

      I agree. Strange to say the least. I understand to each his own. Never the less this seems gross.

  8. Jenn says:

    Great idea Paula! My impression was that this was more designed as just a cake topper, not something to actually eat, correct? I’d eat it though, I love rice krispies! Sweet idea and thanks for having the courage to show us!


    • Paula Ivancicts says:

      Hi Jenn!
      Thanks for your comments! Yes, you totally got what I was trying to achieve with this!!! The “rump” is a cake topper and the round cake underneath is what gets cut and served. 🙂

  9. Becky says:

    Just to reply to becca’s comment..

    you’re not cutting into a baby! No more than if you were cutting into and eating a teddy bear if you had a teddy cake…An entirely unnecessary comment to make when someone has gone to the effort of posting an idea with instructions, in my opinion. A “not too my taste” would have sufficed!

    Thanks for posting Paula, I think it’s a really cute idea!

  10. Donna says:

    Absolutely adorable! Thanks for posting this Paula – I can see how this technique could be used for a lot of three dimensional object and not just baby bottoms!

    • Paula Ivancicts says:

      Hi Donna!
      Thank you for commenting! Yes, I agree, this technique can be used to make other 3D objects!

  11. Amy says:

    This is cute, but when I read it I thought it was gonna be the pregnant belly cake, which I think is cuter. Why whine at someone for not liking it? How would u all feel if u got bitched at for urn opinion?

    • Paula Ivancicts says:

      Hi Amy!
      Thank you for replying! I haven’t seen one of the pregnant belly cakes yet. I’ll have to search for one! 🙂

    • Shelby says:

      @Amy–you mean like you’ve just done with your comment? People are entitled to voice their opinion, the way you’ve clearly stated yours.

      That said, I’m not a fan of the “baby rump” trend in cakes at all, but unlike some attempts that I’ve seen I think this was executed very well!

      • Paula Ivancicts says:

        Hi Shelby!
        Thank you for commenting! I understand that this cake isn’t for everyone. Thank you for mentioning my cake worked out well.

  12. Heather says:

    I LOVE THESE!! It is such a cute fun idea and great technique for a many of diffrent things. Thank you SO MUCH for sharing. Now I must go try this…

  13. Becky B says:

    She posted an opinion…her opinion. It was not horribly offensive nor did she use vulger language to voice her opinion. This cake is an “aquired” cake style. It is unique and creative! Personally, I’m not crazy about it either. It’s purely psychological…the concept is creepy to me too. To each their own, no need to knock someone down for a negative opinion OR positive opinion…that’s all it is, an opinion.

  14. Alycia says:

    Hi I just wanted to comment that I have done these a few times and they are so adorable. I used cake in half the ball pan and covered with fondant on top of another cake and they turned out great! I also used rice krispy treats for the feet and twinkies for the legs and covered in fondant. I manipulated the twinkies a bit to make them shape around the rump!

    • Paula Ivancicts says:

      Hi Alycia!
      Thank you for your comments! Your techniques sound like they work well too! Thanks for sharing!

  15. Mette Thomas says:

    I agree im not sure about this cake, it is kind of sweet but a little weird at the same time seeing half a baby LOL. Although looking past that the possibilities are endless for creating elaborate quilted blankets etc, your idea def worked well done for actually getting it to fruition there is nothing worse when you have the idea in your head and it doesnt work the way you anted it too. I dont think I would have this cake at my baby shower but there are many other designs im not partial too either, just a personal preference, such sweet work on the blanket.

  16. Julia desde Guatemala says:

    I love wilton products, i like ideas the baby, i was en los angeles last may and june, and buy a lot of products store MICHE’L . COLORS and decorations paper . thanks wilton

  17. JOSETTE says:

    I ABSOLUTELY LOVE this cake!! What a cute and creative idea!!! So nice to get away from all the norms of shower cakes with umbrellas and flowers, etc. I’d totally eat this cake – and it doesn’t freak me out any more than eating a picture of my niece or nephew when my sister uses a picture for their birthday cake! In fact, it’s always a fun joke in my house as to who gets to eat the birthday boy/girl’s face!

  18. cindy says:

    I love making these baby rump cakes. I’ve made quite a few for baby showers, and I customize the blanket to go with the theme or the nursery colors. I use a 12″ double layer cake, and then bake a 6″ round cake made in a pyrex bowl. I use rice krispy treats only for the feet and legs. Then cover them w/fondant. I’ve never had anyone say it was horrible to make a baby rump cake. They’re adorable. Keep up the good work!

  19. Sue says:

    I actually agree with Josette… I love the idea of something different for a baby shower… plus I LOVE the idea of using this as a cake topper….. I have seen tier cakes for baby showers and what a cute topper this would be!!! Thank you for this wonderful idea Paula!!!

  20. Lesa Vaughn says:

    OMG! I am sooooooo happy to see this one! I really have been thinking about trying this. Always love the great tutorials and glad to get a heads up on facebook it has been posted too!

  21. moji says:

    Dear Paula,
    I love ur cake and the gut to share it. I personally like to be different with
    Cake, maybe dats why this cake as wow ??M?????? . Its really no big deal eating
    Cake after all we all ave eaten cakes with pix ? it before. Does that mean we
    slaughtering the celebrant? Pls,lets be realistic and stop being unnecesssary sentimental.
    Good work Paula.

  22. Maj says:

    What a wonderful job you did Paula! I think this idea is so cute and creative! Way to go! 🙂

  23. brenda says:

    love everything about it, except the toes should be smaller, after all it is a little baby, the toes is what caught my attention, looked too big for the feet, then looking again, made the feet look not real, so maybe the toes could be smaller to go with the size of the cute little feet..but other than that loved it..always wondered how you do the baby butt, I know..thank you..

    • Paula Ivancicts says:

      Hi Brenda!
      Thank you for commenting! Thanks for the advice! The toes may need to be smaller or it may also have been how the photo was taken. I’m glad you enjoyed the blog and now know how to make one yourself!

  24. Casey says:

    wish we could post pics. I made this cake for my cousins baby shower a long time ago. I did a few things different and actually got the ideas from past wilton blogs. Insted of using fondant I used the chocolate clay with differnt color wilton candy melts. I used this for the blanket, legs, toes, and a bow to go around the bottom cake ( 2-layer 8” round with baby booty on top). Everyone loved it!

    • Paula Ivancicts says:

      Hi Casey!
      Thank you for commenting! Some people like to go into the Forums section on our website! You can usually post pictures there and share what you’ve made. I LOVE to use Candy Clay too!!!

  25. Seriously adorable! What a great idea!

  26. lisa says:

    I too have made this cake in several versions…it is a BIG hit here in Hickory, NC! One of my most popular 🙂 Ideas are limitless!

    • Paula Ivancicts says:

      Hi Lisa!
      Thank you for commenting! 🙂 I’m glad to hear your cakes went over well! Yes, I think there are tons of different ideas to use on these cakes!

  27. angie says:

    Because of course everyone wants to eat a chunk of baby feet… or butt. Am I the only one that finds it disturbing to chop up a baby and serve it to the guests?

  28. LeeAnn says:

    Nicely done, but the whole concept of baby butt cake(where exactly is the other half of the baby supposed to be anyway?) is just very
    odd to me. Pregnant torso cakes are equally bizarre, in my opinion…to each his(or her) own. The quality of work is lovely though, so anyway… 🙂

    • Paula Ivancicts says:

      Hi LeeAnn!
      Thank you for your comment regarding my work. I’m glad to hear you thought it was “nicely done”. The illusion is that the other half of the cake is under the blanket; like a sleeping baby. I understand that these cakes are not for everyone.

  29. Lee says:

    Heh. Don’t look now, but you made Cake Wrecks. Can’t say as I blame them — this is way too much like ritual cannibalism for me!

  30. Andie says:

    Oh, for crying out loud. . . .

    Sure, ‘it isn’t really a baby’, ‘you aren’t cutting into a cake’, blah, blah, blah.

    This is CREEEPY! It’s just as creepy as pregnant belly cakes. Even with the rice krispy treats, you’re still taking apart a sugary facsimile of a baby and *eating* it.

    “But it’s just a topper! No one will be eating it!” Then why? Why make a giant rice krispy treat that is never going to be eaten? The fact is that someone is going to make this, in cake or otherwise, take it to a baby shower, and eat it.

    Many of us have been waiting patiently for this awful trend to just die already. You. Aren’t. Helping.

  31. Heidi says:

    Sorry, I find the cake looks a little creepy too. It’s not even about “eating a baby” whatever, it’s a cake. It just looks creepy to me.
    same with the pregnant belly cakes, just YUCK.

  32. Tabitha says:

    You should totally rig something up to make it poot confectioners sugar. Only then would this be a win in my book.
    Fondant placenta for everyone!

    All rudeness aside, they’re nicely made; just not for me. I’d much rather ….. Not have cake at all?

  33. Hetty Battersea says:

    Creepy. Very well done which makes the creep factor that much higher. Unless you plan on making it out of red velvet cake with oozy raspberry filling. Then it would just be disturbing.

  34. MommaD says:

    That is the most dumbest cake I have ever seen! I would be shocked, then laugh out loud if someone made that for me! It looks like the baby fell into a hole and the only thing ‘showing’ is his butt and feet. Completely ridiculous!!

  35. SUSSY.Q. says:

    What you really need to do is make sure the cake on the INSIDE is RED VELVET cake. Talk about gross!! LOL!!

  36. Delores says:

    I read the entire article. At the end she talks about removing the top. She even mentions that some people are hesitant to cut into a baby-shaped cake. Heck, some people don’t want to cut into teddy bear cakes either. This topper is clearly shown on top of a cake, on a cake board! You remove it. It might not be my style, but I respect her work.

    • Paula Ivancicts says:

      Hi Delores!
      Thank you for commenting! You are absolutely correct; everyone has their own opinion on what they like! Thank you for respecting my work. 🙂

  37. Conni says:

    I love it! I have made many Belly Cakes for Baby Showers and yes some people are squeamish about that too but I say IT’S ONL A CAKE lol and a Novelty nothing more. I made only one of these Rump Cakes and now I’m going to make a Baby Cake with a Chocolate face. Sorry but that was a request from a friend and I love that people ooo and ahhh almost makes you want to pick it up and hold it lol. Anywhozits, I LOVE IT, so adorable.

    • Paula Ivancicts says:

      Hi Conni!
      Thank you for commenting! I’m glad you enjoyed my blog! You are so right; it is only a cake!

  38. Dee says:

    I think this is adorable cake topper.

    To those who find it disturbing and/or creepy, I say, lighten up… know it’s not a real baby!!!!! RELAX and enjoy……if you don’t care for this, move on….no need to share gross thoughts.

    This is totally creative idea that is extremely well executed.

    Keep up the great work, Paula!

    • Paula Ivancicts says:

      Hi Dee!
      Thank you so much for commenting and for your kind words!!! 🙂 I’m glad that you enjoyed my blog!

  39. runnrchic says:

    I think this cake is great since the rump is out of RKT and you actually cut into the cake part underneath. Nothing wrong with that, the topper is just an adornment.

    I was wondering if you put some coconut underneath the cake board, if that would keep the frosting from sticking to it when you remove it.

    • Paula Ivancicts says:

      HI Runnchic!
      Thank you for replying!

      Yes, I think your idea of coconut underneath woudl work great!!! I also could have put a round piece of fondant under the cake board and that would have kept it from sticking to the icing. Thanks for the suggestion! 🙂

  40. Willowcry says:

    I love these cakes. I think they are adorable! I have a baby shower coming up soon (for my own grandbaby!) and my d.i.l wants me to do one for the shower. My question is, can I use the princess cake pan to make the rump instead of the sports ball?

    • Paula Ivancicts says:

      Hi Willowcry!
      Thank you for replying and congratulations Grandma!!!

      If you are referring to the Princess Carriage pan, I’m not sure you will get a round enough area to portray the rump.

  41. jeanette says:

    so cute! i was wondering how much u charge for a cake like this? someone asked me to make one and i’m new to the selling part. i dont want to be unreasonable and at the same time not get taken advantage of. 🙂

    • Paula Ivancicts says:

      Hi Jeanette!
      Thank you for replying!

      Unfortunately, I am unable to tell you how much to charge for the cake. Perhaps you can try an internet search to see what others are charging. Good luck!

  42. Tisha says:

    I absolutely LOVE this idea as a cake topper. So different and unique. I’m making a BB shower cake this week. The baby arrived early so will be there at the shower which I think is going to make it even cuter. Thanks for sharing!

  43. Cute idea, how long did it take you to make one of theses?

    • Paula Ivancicts says:

      I don’t remember the exact time it took, but I do believe this was a quicker project, as I used the cereal treats.

  44. Paula Ivancicts says:

    I’m glad you enjoyed my blog and found what you were looking for! 🙂

    The Wilton website has lots of useful information in the blogs section and elsewhere. I’m happy you found us!

    Happy baking!

  45. Joyce says:

    Hey thanks Hetty for the Idea of the red velvet cake with oozy raspberry filling my family will love It and yes Lee I guess we will be having a ritual cannibalism act at my daughters baby shower.
    But all that aside. Wow Paula great work. Thanks for sharing with us.

  46. Karla says:

    Hi – I think the cake is cute. I have thought about making it, but do not like fondant! I think it tastes terrible. Any suggestions on making it without fondant?

    • Paula Ivancicts says:

      Hi Karla!
      Sure, you can make Candy Clay. Here is the recipe: it’s super easy to make and tastes great because it uses our Candy Melts!!!! I’ve used it lots of times. I would compare it to what some call “modeling clay”. You could easily use the colors of Candy Melts or you can use the Candy Colorings to change the white Candy Melts.

      If you want to use the fondant, you could add a little flavoring, such as, vanilla or almond and knead that in. I like the taste of the chocolate fondant; you may too!

      Good luck!

  47. Heidi says:

    You did a great job! More people need to find Jesus and stop all this mess! When someone takes it over board and does red velvet in the center or like a cake I seen today a pregnant belly cake with see through jello and a plastic baby inside then I think you can bash away but seriously?? Come on we are all grown ups here… No need in acting like grade school children. 🙂 keep up the good work!!

  48. Sarah says:

    Im hoping to try this cake but ill be bringing it on a 2 hour drive to a christening. Just wondering if the rice crispie treats with stay together or am i better using cake for the bump?

  49. michelle says:

    I made it….I made it….I made it! Thank you for your expert online help! Mine turned out really nicely!!!! Thank you!

  50. Monique says:

    It doesn’t have to be rice Krispy treat for the bump it can also be made out if cake! I love it ! I am going to try it for a baby shower in October . Keep you posted on how it comes out. Thanks

  51. Angel says:

    Can’t wait to make this cake! I’m going to put the rump in a diaper and tutu for the shower. So excited!

  52. Renee Olsen says:

    How long ahead of the baby shower can the rump be made and how does it need to be stored till then? Should the fondant be applied at this time or wait? Any ideas would be of help. Thank you.

  53. Becky says:

    This is a beautiful cake. I am looking to make one for a baby shower as well. Could you please give me some ideas on how long it took? Also how long does it stay fresh for? I would like to make it as least 24 hours in advance.

    Thank you for all the help!

  54. […] How to Make a Baby Rump Shower Cake – – Babies are so cute! Adults are always oohing and aahing over those bundles of joy! Especially their little feet! I recently noticed the baby rump cake trend popping …… […]

  55. Dean Land says:

    My daughter is insisting that I make her baby shower cake, and at first it was going to be the belly cake. Them she found out it’s a girl, and as the chosen name is Loki Rose (yes, from The Avengers), well…. it “HAS TO BE A LOKI HELMET, DAD!!” and since she has the full backing of my wife, I started looking for some ideas. Thanks to you, I have already started practicing on my idea.

    The possibilities are endless, and once the rest of the kids see it.. I think I’m going to be rather busy for a while.

    Thanks Wilton, and Paula, for the wonderful ideas, and the awesome tools. Keep it up!!

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