– ½ Cup Solid Vegetable Shortening (or 1/2 cup unsalted butter)
– ½ Cup Unsalted Butter (1 stick softened)
– 4 Cups Sifted Powdered Sugar
– 2 Tablespoons Milk, Heavy Cream or Water
– 1 Teaspoon Vanilla Extract (Pure or Imitation)
– Pinch of Salt (Optional)