1/2 c. butter
1 1/4 c. sugar
2 eggs
1 tsp. baking soda
4 tbsp. sour cream
1 c. mashed banana
1 1/2 c. flour
1/4 tsp. salt
1 tsp. vanilla
1 c. chocolate chips

FROSTING:

2 tbsp. butter
1 c. confectioners' sugar
1 tbsp. strong hot coffee
1 tsp. dry cocoa
1/2 tsp. vanilla

Preheat oven to 350 degrees. Cream butter and sugar, add lightly beaten eggs and soda dissolved in sour cream. Beat well and add mashed banana, flour, salt and vanilla. Mix well and stir in chocolate chips. Bake in well greased and floured 8 inch square pan for 35 to 45 minutes.

FROSTING: Cream butter and sugar; add remaining ingredients.