Place the softened cream cheese in a large mixing bowl
Beat the cream cheese until smooth
Add the peanut butter
Beat the peanut butter and cream cheese until completely combined
Add the powdered sugar
Beat until the mixture is thick and smooth
Pour in the milk
Beat until the filling becomes creamy
Add the Cool Whip
Gently fold the Cool Whip into the peanut butter mixture
Continue folding until the filling is light and evenly combined
Place the graham cracker pie crust on a flat surface
Spoon the peanut butter filling into the crust
Spread the filling evenly across the crust
Smooth the top with a spatula
Sprinkle the chopped roasted peanuts over the filling
Cover the pie with plastic wrap
Refrigerate the pie for at least 4 hours
Chill the pie overnight for the best texture
Remove the pie from the refrigerator
Slice the pie into 8 portions
Serve chilled
