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

Preheat oven to 350 degrees. Microwave butter, cocoa and water 2 minutes and stir together. Combine and mix together dry ingredients. Pour boiling cocoa mixture over flour mixture and mix well. Add buttermilk, eggs and vanilla; stir well. bake in greased and floured sheet pan 30-40 minutes until done.

ICING FOR CHOCOLATE SHEET CAKE:

1 stick butter
4 tbsp. cocoa
6 tbsp. buttermilk
1 lb. powdered sugar
1 tsp. vanilla

Combine butter, cocoa and buttermilk and boil in microwave. Then pour mixture over powdered sugar and add vanilla. Pour on hot cake.