June 16, 2010 - Jessica's House

Texas Sheet Cake

2 cups sugar
2 cups flour
1 tsp baking soda
1 cup water
1 cup butter
1/2 cup cocoa powder
2 eggs
1/2 cup buttermilk or sour milk
1 tsp vanilla

Grease a 15x10x1-inch cookie sheet; set aside.  In a medium bowl stir together flour, sugar, baking soda, and salt; set aside.

In a medium saucepan combine butter cocoa powder, and 1 cup water.  Bring mixture just to boiling, stirring constantly.  Remove from heat.  Add the flour mixture to the cocoa mixture and mix until thoroughly combined.  Mix together eggs, buttermilk, and vanilla and add to mixture, stirring until combined.  Pour batter into the prepared pan.  Bake at 350 for 25-30 minutes, until toothpick comes out clean.

Frosting:

1/2 cup butter
6 Tbsp cocoa powder
6 Tbsp buttermilk or cream
2 1/4 cups sifted powdered sugar **
1/2 tsp vanilla

In a medium saucepan combine butter, cocoa, and buttermilk.  Bring to boil, stirring constantly.  Remove from heat.  Add powdered sugar and vanilla and beat until smooth.  Spread warm frosting over warm cake.

**You may need more or less powdered sugar, depending on the consistency you want.  This frosting sets up pretty quickly so I usually like the frosting a little on the thinner side but not as thin as a glaze.  I don't usually measure the powdered sugar but add and mix until the frosting is the consistency I want.