Fantastic Frozen Peanut Butter Pie
["1 nine inch graham cracker crust", "1 package (8 ounces) cream cheese at room temperature", "1 cup unsifted powdered sugar", "3/4 cup peanut butter", "1/2 cup milk", "1 teaspoon vanilla", "3 cups Cool Whip", "1/4 cup chopped peanuts (optional)"]
["Beat cheese until fluffy, add sugar, beating until smooth. Add peanut butter, mixing well. Stir in milk and vanilla. Fold whipped topping into creamed mixture. Pour into cooled crust. Sprinkle with nuts if desired. Freeze at least four hours."]
["graham cracker crust", "cream cheese", "powdered sugar", "peanut butter", "milk", "vanilla", "peanuts"]