This is an adaptation of an Alton Brown recipe from foodnetwork.com. I experimented with it; the first time I halved the amount of yogurt, but used the original amounts of lemon juice and ginger. Too fiery for us! Now I use just enough ginger to give it flavor, but the lemon predominates. The crystallized ginger gives it that ginger "pop." The 'Zaar nutritional information may be off -- I use Fage Total Nonfat Yogurt, which means a 1/2 cup portion is 87 calories, 0 g. fat (2 WW points).