Banana Bread With Chocolate Chips

1 stick butter, softened
1 1/4 c. sugar
2 eggs
1 1/2 c. flour
1 tsp. baking soda
1/2 tsp. salt
3 bananas (1 c.)
4 tbsp. sour cream
1/2 c. chocolate chips
1 tsp. vanilla

Cream butter and sugar. Add eggs. Add baking soda that has been mixed with sour cream. Alternately add dry ingredients with bananas. Add vanilla and chips. Beat well. Grease and flour 9 x 5 x 3 inch pan. Pour batter into pan. Bake at 350 degrees for 1 hour. Test. May need another 15 minutes. Cool in pan 10 minutes, then turn out and cool on rack.