1Heat oven to 350 F.
2Spray 3 (8-inch) round cake pans with cooking spray. Line bottom of each pan with cooking parchment paper. Spray parchment paper with cooking spray.
3In large bowl, beat White Cake ingredients on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Loosely cover and refrigerate.
4In another large bowl, beat Red Velvet Cake ingredients on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally.
5Spread 1/2 cup red velvet batter in bottom of each pan. Loosely cover and refrigerate remaining batter. Place all 3 pans on oven rack positioned in center of oven. Bake about 8 minutes or until cake is set when lightly touched in center.
6For next cake layer, spread 1/2 cup white batter evenly over each baked red velvet layer. Bake 8 to 10 minutes or until cake is set when lightly touched in center.
7Repeat steps 4 and 5, twice, baking 9 to 12 minutes per layer or until top of cake layer is set when lightly touched in center.
8Cool 10 minutes. Remove cakes from pans; remove parchment paper from bottoms of cakes. Cool completely, about 30 minutes.
9Meanwhile, in large bowl, beat marshmallow creme, butter, vanilla and 1 tablespoon milk with electric mixer on medium speed until blended. Beat in powdered sugar until fluffy. If necessary, beat in more milk, a few drops at a time until spreading consistency.
10To assemble, stack cake layers, spreading 1/2 cup frosting between each layer. Spread remaining frosting on side and top of cake
Red Velvet Cake