I know exactly where you got it because I was going to post it! It's from "Living the G. I. Diet", by Rick Gallop. You omitted the last ingredient, though, perhaps you're one of those who doesn't care for cilantro. The recipe calls for garnishing with 3 tbsp. chopped fresh cilantro on top of the yogurt dollops. Thanks for posting it and saving me the typing!
Ive made this loads of times. It's gorgeous, silky, healthy and very tasty. The recipe came from the GI Diet book.