3 (3 3/4 oz.) pkgs. vanilla instant pudding mix
5 c. milk
1 (8 oz.) container sour cream
1 (9 oz.) carton whipped topping
4 bananas
1 box vanilla wafers

Mix pudding mix and milk. Then add sour cream and 1/2 of the whipped topping. In large casserole dish put a layer of wafers, bananas and pudding mix. Then repeat. Make 2 layers of each. Top with remaining whipped topping.