1/2 lb. butter
3 eggs
1 1/2 c. sugar
3 lg. bananas, mashed
2 tsp. baking soda
2 c. sour cream (16 oz. container)
3 c. flour
6 oz. chocolate chips
1 c. chopped nuts (optional)

Cream butter and sugar. Add eggs and beat in bananas and sour cream. Add flour and baking soda. Stir in chocolate chips and nuts. Place in greased 9 x 13 inch pan. Bake at 350 degrees for 45 to 60 minutes.