- Prep30 MIN
- Total1 HR 35 MIN
- Servings16
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Ingredients
Cake
1 box Betty Crocker™ Super Moist™ white cake mix1 1/4 cups buttermilk1/3 cup vegetable oil3 eggs1 tablespoon unsweetened baking cocoa2 teaspoons royal blue paste food color1 toothpickful violet paste food colorFrosting
1 jar (7 oz) marshmallow creme1 cup butter or margarine, softened2 1/2 cups powdered sugar1/8 teaspoon saltSteps
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1Heat oven to 325°F. Grease and lightly flour bottoms and sides of three 8-inch round cake pans, or spray with baking spray with flour.
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2In large bowl, beat cake ingredients with electric mixer on low speed about 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally.
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3Divide batter evenly among pans. Bake 22 to 27 minutes or until top springs back when lightly touched in center. Cool 15 minutes. Remove from pans; cool completely.
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4Spoon marshmallow creme into large microwavable bowl; microwave uncovered on High 15 to 20 seconds to soften. Add butter. Beat with electric mixer on medium speed until smooth. Beat in powdered sugar and salt until smooth.
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5If necessary, trim rounded tops of 2 cake layers to flatten before assembling. Place 1 cake layer, top side down, on serving plate; spread with about 1/3 cup frosting. Top with second layer, top side down; spread with about 1/3 cup frosting. Top with untrimmed cake layer, top side up. Frost side and top of cake with remaining frosting. Store loosely covered.
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