1 c. butter
1/4 c. cocoa
2 eggs
1 c. water
1/2 c. buttermilk
2 c. sugar
2 c. flour
1 tsp. baking soda
1 tsp. vanilla

Combine butter, cocoa, eggs, water and buttermilk in saucepan and stir over low heat. Remove from heat and stir in sugar, flour, soda and vanilla. Beat until smooth. Pour into greased cake pan. Bake 30 minutes at 350 degrees. Let cool completely.

TOPPING:

Combine 3/4 cup peanut butter and 3/4 tablespoon oil. Spread over cake and refrigerate for 20 minutes. Heat 1/2 cup butter and 1/4 cup cocoa until bubbles. Add 1 teaspoon vanilla, 1 pound 10X sugar and 6 teaspoons buttermilk. Spread over peanut butter and cool.