Combine stevia, milk, and cream in a small, deep mixing bowl. Stir to dissolve stevia.
Cover with plastic wrap and freeze 1 or 2 hours until solid around the edges.
Remove from freezer. Add lemon juice. Beat thoroughly and replace the plastic wrap. Return to freezer.
After 2 hours beat again. Freeze some more until consistency is firm but still soft enough to dip.
This entire process requires about 6 hours and very little effort. For leftovers, remove from freezer about 1/2 hour before serving to allow for softening. Whip again if desired.
Variations:
The amount of stevia and lemon extract can be varied according to taste. Or add a tablespoon Bourbon Vanilla Powder.