Confetti Cake with Brown Sugar Buttercream

Total Time

Prep: 40 min. Bake: 20 min. + cooling


16 servings

Updated: Dec. 08, 2023
This simple and tender cake has been celebrated in my family for years. Dressed up with tinted frosting and confetti, it becomes pure party fun. — Karen Berner, New Canaan, Connecticut
Confetti Cake with Brown Sugar Buttercream Recipe photo by Taste of Home


  • 2-1/4 cups cake flour
  • 1-1/2 cups sugar
  • 3-1/2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 4 large egg whites, room temperature
  • 3/4 cup 2% milk
  • 1 teaspoon clear vanilla extract
  • 1/2 teaspoon almond extract
  • 1/3 cup rainbow jimmies
  • 4 large egg whites
  • 1 cup packed light brown sugar
  • 1/4 teaspoon salt
  • 1-1/2 cups unsalted butter, softened
  • 1-1/2 teaspoons clear vanilla extract
  • 1/2 to 3/4 teaspoon yellow food coloring
  • Confetti sprinkles


  1. Preheat oven to 350°. Line bottoms of 2 greased 9-in. round baking pans with parchment; grease parchment.
  2. In a large bowl, whisk flour, sugar, baking powder and salt. Beat in butter. Add egg whites, 1 at a time, beating well after each addition. Gradually beat in milk and extracts. Gently fold in jimmies.
  3. Transfer batter to prepared pans. Bake 20-25 minutes or until a toothpick inserted in center comes out clean. Cool in pans 10 minutes before removing to wire racks; remove paper. Cool completely.
  4. For buttercream, in a heatproof bowl of a stand mixer, whisk egg whites, brown sugar and salt until blended. Place over simmering water in a large saucepan over medium heat. Whisking constantly, heat mixture until a thermometer reads 160°, 2-3 minutes.
  5. Remove from heat. With whisk attachment of stand mixer, beat on high speed until stiff glossy peaks form, about 7 minutes.
  6. Gradually beat in butter, a few tablespoons at a time, on medium speed until smooth. Beat in vanilla and enough food coloring to achieve desired color.
  7. Immediately spread frosting between layers and over top and sides of cake. Decorate with sprinkles. Store in refrigerator.
Editor’s Note: The cake shown was prepared with Eillien’s Rainbow Decorettes in the cake batter. If this product is not available in your area, look for other non-chocolate rainbow jimmies.

Nutrition Facts

1 slice: 436 calories, 24g fat (15g saturated fat), 62mg cholesterol, 239mg sodium, 51g carbohydrate (35g sugars, 0 fiber), 4g protein.