Prepare Your Base: First, make your sugar-free condensed milk following its recipe, and let it cool completely to room temperature. This forms the creamy foundation for your delicious ice cream!
Combine & Whisk: In a large bowl, gently whisk together the cooled condensed milk, heavy cream, powdered sweetener, the optional vodka, vanilla extract, and a pinch of salt. Mix until everything is beautifully combined and smooth.
Sweetness Check: Give your mixture a quick taste. If you prefer it a bit sweeter, carefully add a little more powdered sweetener, whisking well until fully dissolved to ensure a perfect, smooth texture.
Chill & Churn: Cover the mixture and chill it in the refrigerator for at least one hour, or even overnight, for the best results. Once thoroughly chilled, pour it into your ice cream maker's canister and churn according to your machine's directions until it reaches a lovely soft-serve consistency.
Freeze to Perfection: Transfer the freshly churned ice cream into an airtight container. Place it in the freezer for at least 4 hours, or until it becomes perfectly firm and wonderfully scoopable. Enjoy your healthy, homemade summer treat!