Saturday, January 21, 2012
White Texas Sheet Cake
slightly adapted from Piece of Cake!
1 cup unsalted butter or margarine, cut into pieces
1 cup boiling water
1 tsp baking soda
1/2 tsp salt
2 cups flour
1 1/2 cups sugar
1/2 cup sour cream
1 tsp vanilla
1/2 cup unsalted butter or margarine, melted
1/3 cup sour cream
1/2 tsp vanilla
4 1/2 cups powdered sugar
Preheat your oven to 350. Line a 10x15 inch pan with parchment. Set aside.
In a large bowl, combine the margarine and water. Let stand for ten minutes, stirring until melted. Whisk in baking soda and salt. Add flour, sugar, eggs, sour cream and vanilla and whisk until blended. Pour evenly into prepared pan. Bake in the preheated oven about twenty five minutes or until a toothpick inserted comes out clean. Let cool in a pan on a wire rack while you make your frosting.
For the frosting: combine the margarine, sour cream and vanilla in a small bowl. Add enough powdered sugar to make a frosting of spreadable consistency. When the cake has cooled about fifteen minutes, spread the frosting on. Frosting too soon will cause separation and a melting of the frosting. If that happens, scrape it off and let the cake cool further. Top with sprinkles if desired.