Mix Box 1 of pudding with 3 cups milk.

Mix Box 2 of pudding in separate bowl with the other 3 cups milk.

Add half tub of cool whip to each bowl of pudding.

Add half sour cream to each bowl of pudding.

Stir both bowls well.

Layer Vanilla Wafers in bottom of pan (I use the aluminum pans you can throw away, but any deep pan will work).

Put one bowl of pudding/whipped cream mix on top of wafers.

Add another layer of wafers.

Add bananas.

Add second bowl of pudding/whipped cream mix.

Add last of the vanilla wafers.