3 sm. pkgs. instant vanilla pudding
8 oz. sour cream
5 c. milk
4-5 bananas
1 box vanilla wafers
1 container Cool Whip

Beat pudding and milk 2-3 minutes. Fold in sour cream and 6 ounce of the Cool Whip. In 9x13 dish layer wafers, bananas and pudding twice. Refrigerate. Place remaining Cool Whip on each serving.