Evenly distribute the chopped or broken Nilla Wafers into 4 -5 oz. jars.
Pipe or spoon the prepared Jello pudding into each jar on top of the Nilla Wafers- distributing evenly.
Add the bananas to each- again distributing evenly.
Combine cinnamon and sugar and sprinkle 1/4 of your mixture onto the bananas in each jar.
Pipe the Cool Whip onto the top (I just use a ziplock bag for this -with about 1/2 in of the corner cut off) of each jar.
Garnish with additional Nilla Wafers if desired.
Enjoy immediately or refrigerate until serving.