Using a mixer, mix together the 3 packages of pudding and the 5 cups of milk. Mix until thick (about 2 minutes).
Add the sour cream and mix together. Stir in the Cool Whip. (I use the mixer for this part, too.)
Line a large dish (I use a 9 x 13 glass pan) with vanilla wafers, then bananas and 1/2 of the pudding mixture. Repeat the
layer of wafers, bananas and the rest of the pudding mixture. I like to crumble some vanilla wafers on the tope to finish
it off. Chill in refrigerator overnight.
