This is how I have made mine for years - although it is a little un-traditional because it doesn't use vanilla wafers I always get requests for it and my family dosn't like vanilla wafers. Also using the cook and serve pudding makes preperation time a breeze.

To make a fairly large pudding use

4 boxes of Jello Cook and Serve Banana Pudding (small size)
Graham Crackers (whole)
Bananas
Whipped Topping

Make Jello Pudding per instructions on the box.

In a large dish or bowl (I use a square tupperware container) begin by laying a layer of Graham Crackers so that it covers the bottom.

Slice bananas and lay those on top of the graham crackers (how many depends on your preference I use lots).

Then ladle on about 1/3 of the warm pudding.

Repeat these layers again and again until you have filled your container or run out of pudding.

Place in refrigerator to cool and set.

Prior to serving - cover top with Whipped Topping and crumbled graham crackers.ENJOY!