Pour the milk, strawberries, allulose, and guar gum into a small blender and blend until all ingredients are fully combined. Add the strawberry lemonade and blend again (If you add the lemonade at the same time as the other ingredients, the milk will curdle). Pour the mixture into a Ninja Creami container.
Freeze on a level surface for 24 hours. Your freezer should be between 9 and -7 degrees Fahrenheit.
Process the Ice Cream
After 24 hours, remove the Ninja Creami container from the freezer. If there is a large bump in the sherbet, melt or scrape the large bump so that the top is level.
Place the Ninja Creami container into the outer bowl of the Ninja Creami and then process on "SORBET."
If the sherbet is dry or crumbly looking (like sand), pour in a tablespoon or two of milk and then re-spin. If the sherbet looks more like little balls of ice cream, re-spin without adding liquid. You may have to respin a couple of times.
Video
Notes
Why is the mixture blended twice?The mixture for this recipe has to be blended twice because if you add all of the ingredients at the same time, the milk will curdle when you add the lemonade.Blending all of the base ingredients except the lemonade first, and then adding the lemonade and blending again prevents the mixture from curdling.Can frozen strawberries be used in this recipe?Yes, you can use frozen strawberries but you should thaw them before adding them to the rest of the base ingredients.If you don’t thaw them, they will not mix together with the other base ingredients very well.