Place Oreo cookies in a food processor and pulse until crumbs you should have about 2 cups.
Add the cookie crumbs to a medium bowl and add in the melted butter and mix until combined.
Press the cookie crumbs into a pie plate until firm.
Add the cream cheese and peanut butter to a medium bowl and beat on medium-high until creamy.
Add in the powdered sugar and vanilla until combined.
Place the Butterfingers into a large ziplock bag and using a mallet or rolling pin gently crush the bars into small chunks.
Using a spatula fold in the crushed Butterfinger bars (reserving 1/2 cup for topping) and the cool whip until combined.
Spread the filling into the cookie crust and sprinkle the extra Butterfinger pieces on top.
Chill for 4 hours and serve!
Video
Notes
You can use a premade cookie crust if you prefer.If you don't have a food processor place the ores in a large ziplock freezer bag and using a rolling pin smash the cookies until they become crumbs.Blend the entire Oreo even the filling.You can use 4 full-size candy bars instead and the fun size.You can make my homemade cool whip if you prefer.