The Crust

Melt butter.
Remove the icing from 20 Oreos - Set aside icing for filling.
Crush the 20 Oreos.
Combine butter and crushed Oreos to make crust

The Filling

Combine remaining Oreos, the icing from the Oreos used for crust, room temperature cream cheese, 1/2 cup of confectioners sugar and 1 tsp of vanilla extract.

The Cool Whip

Mix 1/2 cup confectioners sugar, 1 pint of heavy whipping cream and 1 tsp of vanilla extract.
Slowly increase mixing speed as it stiffens.

Combine the Fillings and The Cool Whip