2 sm. boxes instant vanilla pudding
3 c. cold milk
1 (8 oz.) sour cream
1 (9 oz.) Cool Whip
1 box vanilla wafers
4-5 lg. bananas

Combine pudding using cold milk and sour cream. Beat until thick. Fold in Cool Whip. Alternate layers of vanilla wafers, pudding and sliced bananas. Top with wafer crumbs.