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

TOPPING:

1 1/2 c. peanut butter
1 1/2 tbsp. peanut oil

ICING:

1/2 c. butter
1/4 c. cocoa
6 tbsp. buttermilk
1 lb. powdered sugar
1 tsp. vanilla

In a saucepan combine first 5 ingredients. Cook over low heat stirring constantly until it bubbles.

In another bowl mix dry ingredients. Beat until smooth and add vanilla. Spread in a greased and floured 9x13 pan. Bake at 350 degrees for 25 minutes.

Mix peanut butter and oil together. Spread on cake when cake is cool.

In a saucepan, heat butter, cocoa and buttermilk for icing until it bubbles. Place powdered sugar in large bowl. Beat in liquid, stir in vanilla and spread over peanut butter.