1 c. water
1/3 c. cocoa
2 sticks butter
2 c. flour
2 c. sugar
1 tsp. baking soda
1/2 tsp. salt
1/2 c. buttermilk or 1 tbsp. vinegar plus 2% milk to equal 1/2 c.
2 eggs
1 tbsp. vanilla

ICING:

1 stick butter
1/4 c. cocoa
5 tbsp. buttermilk
1 tbsp. vanilla
1 lb. powdered sugar

In saucepan over medium heat bring to boil water, cocoa and butter. Add flour, sugar, baking soda and salt; mix well. Add and mix well again: buttermilk, eggs and vanilla. Pour into a greased and floured sheet cake pan. Bake at 400 degrees for 20 minutes.

Five minutes before cake is done prepare icing. Combine in saucepan: butter, cocoa and buttermilk. Bring to boil over medium heat, boil 1 minute. Remove from heat. Add vanilla and powdered sugar. Pour over warm cake.