Food & Cooking Recipes Dessert & Treats Recipes Cake Recipes Bouncing Ball Cake 4.1 (24) 1 Review 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 January 16, 2019 Print Rate It Share Share Tweet Pin Email Servings: 10 Ingredients Swiss Meringue Buttercream for Cupcakes Red, yellow, and blue gel-paste food coloring Yellow Cake, baked in two 8-inch round cake pans Directions Place 1/4 cup buttercream in each of 3 bowls; tint buttercream in one bowl red, another yellow, and another blue. Transfer each color to a pastry bag fitted with a coupler and a small plain round tip (such as Ateco #4); set aside. Using a serrated knife, trim tops of cakes level. Place 1 cake layer on a cake stand or a cardboard round wrapped in parchment paper. Spread with 1 1/2 cups buttercream. Top with remaining layer. Thinly coat top and sides with buttercream. Refrigerate 30 minutes. Remove from refrigerator, and frost with 2 cups buttercream. Using a toothpick, make an outline of dashed arches on side of cake. Pipe red, yellow, and blue buttercream dashes over the outlines. Switch to a 1/4-inch plain round tip (such as Ateco #12) to make "balls" of frosting at end of each dashed line. Pipe 6 "balls" around top edge of cake. Cake can be refrigerated up to 6 hours. Cook's Notes Cake can be refrigerated up to 6 hours. Rate it Print