Best-Ever Hot Fudge Sauce
["1 c. sugar", "1 c. heavy cream", "2 Tbsp. margarine", "1 Tbsp. light corn syrup", "4 (1 oz.) squares unsweetened chocolate"]
["Cook on High for 4 minutes.", "Stir until smooth.", "Cook 4 to 5 minutes until thickened.", "Add 1 teaspoon vanilla stirring until smooth and glossy.", "Serve hot.", "Makes 1 3/4 cups."]
["sugar", "heavy cream", "margarine", "light corn syrup", "chocolate"]