We've had bad luck with frozen yogurt in the past. With the exception of this Honeyed Blueberry Frozen Yogurt, which includes a cup of cream to smooth things out, we find that frozen yogurt just doesn't get smooth and creamy in home ice cream makers.
Then, thanks to David Lebovitz and also Deb at Smitten Kitchen, we stumbled on a new and better secret ingredient to make our yogurt creamier.
Coconut milk! We were in love with this Coconut Pinkcherry Yogurt at Smitten Kitchen, Deb's adaptation of one of David's recipes from Perfect Scoop. We noticed the coconut milk and thought, aha! That's what our yogurt is missing.
It turns out that you barely even notice the taste of the coconut milk at all; it just makes the whole thing smoother. It still has that yogurt lightness and tartness, but it's a little smoother than our icy first attempts.