Easy Chocolate Delight Pie
["2 pkg. (4 oz. each) Baker's German's sweet chocolate", "1/2 c. milk", "1 pkg. (8 oz.) Philadelphia brand cream cheese, softened", "2 Tbsp. sugar (optional)", "3 1/2 c. (8 oz.) Cool Whip nondairy whipped topping, thawed", "1 chocolate wafer crumb crust (9-inch)"]
["Heat all but 3 squares chocolate with 1/4 cup milk in heavy saucepan over very low heat.", "Stir until completely melted."]
["chocolate", "milk", "cream cheese", "sugar", "nondairy whipped topping", "chocolate"]