1/2 c Sour cream
1 pk White cake mix
1/2 ts Baking soda
1 c Mashed bananas
1/2 c Chopped nuts
Add sour cream to cake mix and beat for 1 minute. Add baking soda to bananas. Add to batter and continue beating 1-1/2 minutes. Fold in nuts. Pour into 2 greased and waxed paper lined 8-inch cake pans. Bake in 375 degree oven for 20 to 25 minutes.