2/3 c. butter
1 1/3 c. sugar
2 3/4 c. flour
1 tsp. baking powder
1 tsp. baking soda
1/2 tsp. salt
2 eggs, beaten
1 1/2 c. mashed bananas
1/2 c. sour cream
1 c. chopped walnuts

Cream butter and sugar. Combine flour and next 3 ingredients. Combine eggs, banana and sour cream. Add flour mixture to cream mixture alternately with banana mixture.

Mix very well, add nuts last. Bake at 350 degrees for 1 hour and 15 minutes until toothpick comes out clean.