Chocolate Peanut Delight
["1 pkg. (18 1/4 oz.) chocolate cake mix", "1/2 cup butter or margarine, melted", "1/4 c. milk", "1 egg", "1 c. chopped peanuts, divided", "1 pkg. (8 oz.) cream cheese, softened", "1 c. peanut butter", "1 c. powdered sugar", "1 can (14 oz.) sweetened condensed milk", "1 1/2 tsp. vanilla extract", "1 carton (16 oz.) frozen whipped topping, thawed, divided", "1/2 c. semisweet chocolate chips", "4 1/2 tsp. butter or margarine", "1/2 tsp. vanilla extract"]
["In a mixing bowl, combine dry cake mix, butter, milk and egg. Add 3/4 c. of peanuts.", "Spread into a greased 13 x 9 x 2 inch baking pan.", "Bake at 350\u00b0 for 30 minutes or until a toothpick inserted near the center comes out clean.", "Cool on wire rack.", "In a mixing bowl, beat the cream cheese, peanut butter, sugar, condensed milk and vanilla until smooth.", "Fold in 3 cups whipped topping.", "Spread over the crust; top with the remaining whipped topping and peanuts. In a microwave-safe bowl, heat chocolate chips and butter on high for 1 minute or until melted.", "Stir in vanilla until smooth; drizzle over cake.", "Refrigerate for 2-3 hours before cutting.", "Yield: 12-15 servings."]
["chocolate cake", "butter", "milk", "egg", "peanuts", "cream cheese", "peanut butter", "powdered sugar", "condensed milk", "vanilla extract", "frozen whipped topping", "chocolate chips", "butter", "vanilla extract"]