Blueberry Lemon Frozen Yogurt Sorbet

12 oz bag frozen blueberries
1 container (6oz) blueberry yogurt (I used the light variety, blueberry patch flavor)
the juice of 1 lemon
Sweetener to taste

Process frozen berries until smooth. Add yogurt and lemon juice. Sweeten to your taste using splenda or other sweetener.

As we found out, this mixture is very good when mixed with the homemade vanilla ice cream.