Peanutty Hot Fudge Cheesecake
["1 1/2 c. graham cracker crumbs", "1/3 c. margarine, melted", "3 Tbsp. powdered sugar", "1 (8 oz.) pkg. Philadelphia cream cheese, softened", "1 c. powdered sugar", "1/3 c. peanut butter", "3 c. Cool Whip, thawed", "1/4 c. chopped peanuts", "1/4 c. hot fudge topping, heated"]
["Preheat oven to 350\u00b0."]
["graham cracker crumbs", "margarine", "powdered sugar", "Philadelphia cream cheese", "powdered sugar", "peanut butter", "peanuts", "hot fudge topping"]