Atkins Low-Carb Fudge Must be eaten very cold 16 ounces cream cheese, softened 2 ounces unsweetened chocolate, melted and cooled 1/2 cup sugar substitute 1 teaspoon vanilla 1/2 cup chopped nuts, optional * Mix all ingredients together and spread in a foil-lined tray. * Refrigerate 4 hours or until firm. * Keep chilled or frozen.