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

Preheat oven to 350 degrees. Combine butter, cocoa, water, buttermilk, eggs in a saucepan. Heat on low heat until it bubbles. Take off and into hot bowl, mix flour, sugar, and soda. Stir hot mixture into dry ingredients; heat until smooth. Add vanilla, spread in greased and floured 9 x 13 inch pan. Bake 35 minutes.