Definitely in stir fries and any sort of curry, be it a stew type curry or a salad dressing (grate them into a mayo for a creamy salad or slaw dressing). Also good if you want to jazz up a prepared food (canned or frozen foods, beans, etc). Someone correct me if I'm wrong, but I think it is tumeric that gives most curry powders their distinctive yellow color, and it stains like crazy. It is one thing that I'm religious about cleaning right away, because any surface it stays on over night will be yellow for life.