Make pudding according to directions on the back of the box.
In a bowl, place half of the pudding and half of the whipped topping. Fold together until combined.
In medium sized mason jar, layer the vanilla wafer crumbs and the banana pudding. Add another layer of cookies and the banana pudding/whipped topping mixture. Add another layer of vanilla wafers and top is with whipped topping. Add a light dusting of cookie crumbs to the top and a banana chip (optional) for garnish. Serve and enjoy!