In a medium bowl mix together the instant pudding and skim milk. Whisk for 2 minutes, then let sit for 5 minutes to set.
Cut banana into 20 slices.
Layer the ingredients in the dessert cups. Put 1 Nilla Wafer in the bottom, and a couple tablespoons of pudding, another Nilla Wafer, 2 banana slices, and more pudding.
I like to refrigerate mine for a couple hours so the cookie can get soft. (This is optional)
Add a tablespoon of fat free Reddi Wip when it’s time to serve.