If you go nuts for peanut butter, you’re going to love this sweet and delicious Peanut Butter Cake Filling. Made using your favorite creamy peanut butter, this cake filling tastes amazing in between chocolate cake layers or piped into banana cupcakes. Combine it with a drizzle of melted chocolate for the ultimate cake filling!

chocolate cake with peanut butter filling

Peanut Butter Cake Filling

This sweet, creamy and delicious peanut butter filling is all you need to elevate your cake to the next level. Made with creamy peanut butter, this filling gives your favorite chocolate, mocha and vanilla cakes and cupcakes a sweet surprise! It also tastes fantastic served over ice cream or bananas.
4.60 from 37 votes
Prep Time 15 mins
Total Time 15 mins
Course Dessert
Servings 1 Cup


  • Large Bowl
  • Measuring Cup


  • 1 cup creamy peanut butter
  • ¼ cup (1/2 stick)  butter, softened
  • 1 cup powdered sugar (confectioners’ sugar)
  • 4 tablespoons heavy cream


  • In a large bowl, combine peanut butter and butter.
  • Beat on medium speed with an electric mixer for 1-2 minutes or until mixture is well combined.
  • Add confectioners’ sugar and continue to beat until smooth.  
  • Add heavy cream, and beat on medium for 1-2 minutes or until light and fluffy.


How long will peanut butter filling keep in the fridge: Filling can last for 4-5 days. 
Storing cake after filling: Refrigerate cake for best storing after filling
Tried this recipe?Take a picture and tag us @WiltonCakes on Instagram
chocolate cake with peanut butter filling

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