Oreo Pie

1 (9-inch) graham or oreo crust
1 (8-oz) pkg cream cheese
1 cup powdered sugar
1 (8-oz) pkg instant vanilla pudding
1 (16-oz) container Cool-Whip
1-1/2 cups milk
20 oreo cookies, crushed
1 tsp vanilla

Beat cream cheese and sugar together.
In another bowl, beat pudding and milk until thick.
Add Cool Whip and vanilla to pudding.
Add cream cheese mixture to pudding mixture, stirring well.
Layer the cookie crumbs and the pudding mixture into the crust, beginning with a layer. of cookie crumbs and reserving enough cookie crumbs to cover top.