Cashew Cream Chicken

For anyone who thinks chicken is just an everyday thing, wait till you make this fabulous recipe. Parsis love dishes with thick, creamy gravy, especially for festive occasions—a preference we brought with us a thousand years ago from Iran, where chicken is still cooked with ground nuts. Chicken fesenjan and Circassian chicken, which use walnuts and almonds, are obvious cousins. Firoza Kanga, my authority on Parsi food, tells me that for a truly extravagant gesture, a Bombay hostess w