Preheat oven to 350F. Lightly spray a pie plate with cooking spray and set aside.

Place Nilla wafers in a food processor and pulse until only crumbs remain. (You can also crush in a large ziploc bag)

Transfer crumbs to a medium size bowl and stir in sugar and melted butter.

Pres the crumbs firmly into the pie plate and up the sides.

Bake for 10 minutes or until edges are just starting to turn golden brown. Let cool completely on a wire rack before filling.