1/2 c. butter
1 1/4 c. sugar
2 eggs
1/4 c. sour cream
1 tsp. baking soda
1 c. mashed bananas
1 1/2 c. flour
1/4 tsp. vanilla
1 c. mini chocolate chips
1/2 c. walnuts

Cream butter and sugar. Add eggs. Beat until light and fluffy. Add sour cream and baking soda. Stir in banana, chips and nuts and vanilla. Add flour. Beat until smooth. Bake in paper lined muffin tins. Bake at 350 degrees for 15-20 minutes. Makes 18 muffins.