Buttermilk Chocolate Sheet Cake

Mix together dry ingredients:
2 c sugar
2 c flour
1 t soda
1 t cinnamon

1 c water
1 cube butter
1/4 t salt
1/2 c oil
4 T cocoa
Heat water, butter, salt, oil, and cocoa together. Pour over dry ingredients.

1/2 C buttermilk
2 eggs
1 t vanilla
Add rest of ingredients. Mix well, pour into a greased and floured cookie sheet pan and bake at 400 for 20 minutes or until done.

Fudge Icing:
1/2 c butter
4 T cocoa
6 T buttermilk

Boil together until butter is melted. Take off heat and add 1 t vanilla and about 1 pound of powdered sugar or a little less. Spread on hot cake. Nuts may be added.