Peanut Butter Pie
["1 chocolate graham cracker pie shell", "1 c. powdered sugar", "1/2 c. milk", "1/2 c. peanut butter", "1 (8 oz.) Cool Whip, thawed", "1 tsp. vanilla"]
["Mix all ingredients.", "Pour into pie shell.", "Freeze until ready to serve."]
["graham cracker pie shell", "powdered sugar", "milk", "peanut butter", "vanilla"]