WHITE FROSTING FOR CAKE RECIPES

Steps:

• Preheat oven to 375°. Grease a 15x10x1-in. baking pan., In a large bowl, whisk the first 5 ingredients. In a small saucepan, combine butter and water; bring just to a boil. Stir into flour mixture. In a small bowl, whisk eggs, sour cream and extract until blended; add to flour mixture, whisking constantly., Transfer to prepared pan. Bake until golden brown and a toothpick inserted in center comes out clean, 18-22 minutes. Cool on a wire rack 20 minutes. , For frosting, combine butter and milk in a large saucepan; bring just to a boil. Remove from heat; gradually stir in confectioners' sugar and extract. Stir in walnuts. Spread over warm cake.

Steps:

• Preheat oven to 350°. Line bottoms of 2 greased 9-in. round baking pans with parchment; grease parchment., In a large bowl, beat sugar, water, oil, vinegar and vanilla until well blended. In another large bowl, whisk flour, sifted cocoa, baking soda and salt; gradually add to sugar mixture, beating until smooth., Transfer batter to prepared pans. Bake until a toothpick inserted in center comes out clean, 30-35 minutes. Cool in pans 10 minutes before removing to wire racks; remove parchment. Cool completely., For frosting, sift confectioners' sugar and cocoa together. In a large bowl, beat butter and vanilla until blended. Beat in confectioners' sugar mixture alternately with enough milk to reach desired consistency. Spread frosting between layers and over top and sides of cake.