Easy Peanut Butter Pie

1/3 cup peanut butter
4 ounces cream cheese, softened
1/2 cup powdered sugar
1 (9 ounce) container Cool Whip, thawed
1/4 cup milk
1 (9 inch) graham cracker crust or 1 -9 inch chocolate cookie pie crust
Directions:

1
Combine all ingredients and freeze in a baked graham cracker crust or Oreo cookie crust.
2
May be topped with chocolate sauce.