2 1/2 c. flour
2 tsp. baking soda
1/4 tsp. salt
1/3 c. cocoa

Mix and set aside.

Cream:

1 c. butter
2 c. sugar
1/3 c. sour milk or cream
1 tsp. vanilla
1 c. mashed banana

Add dry ingredients and 2 eggs. Last of all, add 1 cup boiling water. (Batter will be thin!) Bake 1 hour in 9 x 13 inch greased pan at 350 degrees. Ice with chocolate frosting.