Mix together vanilla pudding mix, milk, sweetened condensed milk, and 1/2 the tub of cool whip together until there are no lumps.
Refrigerate pudding mix while making crust
Take 2 cups of vanilla wafer and add to a freezer bag and seal and crush cookies with the bottom of a glass
Pour the crushed cookies, peanut butter, vegetable oil, and vanilla extract in a bowl and mix all together to create a dough like texture
Take a big serving bowl (I used a 13 inch bowl) and pour cookie crust and shape around the bottom of the bowl
Line the side of your bowl with vanilla wafers standing up
Lay a slice of banana slices down on crust and then half of the pudding mix
Next do a layer of vanilla wafer cookies, then a layer of bananas and the rest of the pudding mix.
Top with the remaining cool whip and then crushed vanilla wafers
Refrigerate for at least 2 hours