Dessert & Treats Recipes Cake Recipes Fillings & Frostings Buttercream Frosting Recipes Fluffy Chocolate and Yellow Buttercreams 2.8 (21) 2 Reviews By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on September 28, 2016 Print Rate It Share Share Tweet Pin Email Yield: Makes 3 3/4 cups chocolate frosting and 1 1/4 cups yellow frosting If you're using this frosting for piping and not for our Monkey Cake, start with Step 2. Ingredients 1 pound (4 sticks) unsalted butter, softened 1 teaspoon vanilla extract 5 ¼ cups sifted confectioners' sugar Yellow food coloring ¾ cup unsweetened cocoa powder Directions In the bowl of an electric mixer fitted with the paddle attachment, combine 1 stick butter, 1/2 teaspoon vanilla, and 1 1/2 cups sugar; mix on medium-high speed until pale and fluffy, about 2 minutes. Stir in food coloring to make pale yellow. Transfer to a small bowl; cover. Put remaining 3 sticks butter in mixing bowl. Beat on medium-high speed until pale and creamy, about 2 minutes. Reduce speed to medium; add cocoa. Mix until smooth. With mixer running, add remaining 3 3/4 cups sugar, 1 cup at a time. Add remaining 1/2 teaspoon vanilla; mix on high speed until incorporated, 10 to 20 seconds more. Rate it Print