WHITE SHEET CAKE WITH BUTTERCREAM FROSTING

WHITE SHEET CAKE WITH BUTTERCREAM FROSTING image

Yield 12-15

Number Of Ingredients 7

1 1/4 cups butter, softened
2 1/4 cups sugar
7 large egg whites, at room temperature
3 1/2 cups cake flour
4 tsp. baking powder
1 tbsp. vanilla extract
Vanilla Buttercream Frosting

Steps:

Preheat oven to 325. Beat butter and sugar at medium speed until soft and fluffy. Gradually add egg whites, one-third at a time, beating well after each addition. Sift together cake flour and baking powder; gradually add to butter mixture alternately with 1 cup water, beginning and ending with flour mixture. Stir in vanilla. Pour batter into a greased and floured 13 x 9 inch pan. Bake at 325 for 45 to 50 minutes or until a wooden pick inserted in center comes out clean. Cool completely in pan on a wire rack (about 1 hour). Remove from pan to a serving platter. Spread top and sides of cake with frosting. VANILLA BUTTERCREAM FROSTING 1 cup butter 1/2 cup milk 1 tbsp. vanilla extract 2 (16 oz.) packages powdered sugar Beat butter at medium speed until creamy. Stir together milk and vanilla. Gradually add powdered sugar to butter mixture alternately with milk mixture, beating at low speed just until blended .