Tip: If using a sugar substitute, choose from Splenda(R) granular, Equal(R) Spoonful or packets, or Sweet'N Low(R) bulk or packets in place of granulated sugar. Follow package directions to use product amount that's equivalent to 3 tablespoons granulated sugar. Nutrition Facts Per Serving with Substitute: same as below except 46 calories, 11 g carbohydrate. Exchanges: 1/2 other carbohydrate.
If you want to beat the mixture with an electric mixer rather than using a food processor, transfer the frozen chunks to a chilled very large bowl. If necessary, mash with a potato masher to make small pieces. Beat with an electric mixer on medium speed just until smooth, but not melted.