3 sm. pkgs. vanilla instant pudding
5 c. milk
1 (8 oz.) container sour cream
1/2 of 8 oz. container Cool Whip
Vanilla wafers
Ripe bananas

Combine pudding mix and milk. Mix well. Stir in sour cream, fold in Cool Whip. Layer vanilla wafers, sliced bananas, pudding mixture; making two layers of each. Top with remaining Cool Whip.