Add all of the cookies into a food processor and pulse until the cookies become fine crumbs. This doesn't take long! Less then a minute!
Add the Biscoff crumbs to a bowl with 6 tbsp. of melted butter & a pinch of salt and mix together thoroughly.
Press the crumbs into a 9 inch pie plate and press on the bottom and up the sides of the plate a bit. Use the back of a dry measuring cup to get it even.
Bake the crust at 350 degrees F for 8 minutes. Remove from oven and cool completely before filling the pie.
Pie filling:
Add softened cream cheese and the peanut butter and cookie butter to a bowl and beat until combined. (a few minutes)
Then, add in the powdered sugar and beat until smooth again.
Add in 1 carton of cool whip and beat until creamy.
Add the pie filling into the cooled pie crust and smooth it over as even as possible.
Store in the freezer or refrigerator for 30-60 minutes before decorating.
Decorate by adding about 1/2 a container of cool whip to the top of the pie and spread over the top leaving some of the peanut butter filling showing around the perimeter of pie.
Heat up chocolate sauce or fudge and using a fork drizzle all over the top of the cake!
Store in the freezer until ready to serve with foil tented over top. Let the pie sit out 15 minutes before serving and MAKE IT! BEST!!!