6 to 8 bananas
3 large pkg. instant vanilla pudding mix
1 (8 oz.) sour cream
1 (16 oz.) Cool Whip
5 c. milk
2 boxes vanilla wafers

Combine milk, pudding mix, sour cream and half of the Cool Whip. Beat until thick. Layer bottom of large baking dish with vanilla wafers. Pour half of the pudding mixture over wafers. Slice bananas on top. Add remaining pudding. Place wafers around edges and crumble some on top. Finally, top with remaining Cool Whip.