1 c. butter
1/3 c. dry cocoa
2 c. sifted flour
2 c. sugar
1 tsp. baking soda
1/2 tsp. salt
2 eggs, slightly beaten
1/2 c. buttermilk
1 1/2 tsp. vanilla

FROSTING:

1/4 c. butter
3 tbsp. dry cocoa
3 tbsp. buttermilk
2 1/4 c. sifted powdered sugar
1/2 tsp. vanilla

Combine butter, cocoa, and 1 cup water in pan and bring to a boil; set aside. Combine dry ingredients; stir in eggs, buttermilk, and vanilla. Add cocoa mixture and mix well. Mixture will be thin. Pour into greased 15 1/2 x 10 1/2 x 1 inch pan. Bake for 20 minutes at 375 degrees.

FROSTING: Mix butter, cocoa, and buttermilk in pan; bring to a boil. Beat in powdered sugar and vanilla. Pour over hot brownies. Let cool before cutting.