Cocoa Peanut Butter Chip Pie
["9 oz. pkg. graham cracker crumb crust", "1 c. peanut butter chips", "1/4 c. (1/2 stick) butter or margarine", "1/4 c. Hershey's cocoa", "1 c. (14 oz.) sweetened condensed milk", "1/2 c. water", "1 egg, beaten", "1/2 tsp. vanilla extract", "whipped topping (optional)"]
["Heat oven to 350\u00b0.", "Sprinkle chips on bottom of crust.", "In medium saucepan over low heat, melt butter.", "Add cocoa, stir until smooth.", "Add sweetened condensed milk and water.", "Stir with whisk until well blended.", "Stir in egg and vanilla.", "Remove from heat. Pour into crust.", "Bake for 30 minutes or until edges are set (center will firm while cooling).", "Cool slightly.", "Garnish with whipped topping (if desired).", "Serve warm or at room temperature. Makes 8 servings."]
["graham cracker crumb crust", "peanut butter", "butter", "cocoa", "condensed milk", "water", "egg", "vanilla extract", "topping"]