Heat the oil in a heavy casserole over med. heat then saute' the onions & garlic for 10 minutes. Raise the ehat to high, add the meat, turmeric, salt, pepper, and brown meat on all sides. Stir in the saffron, cinnamon, mint, walnuts, tomato paste, & chicken stock. Bring to aboil, reduce heat to low, cover, & simmer for 1 1/2 hrs. Add lemon juice, pomegranate juice, and chestnuts stir well then cover and simmer for 10 more minutes. Serve over a bed of saffron rice. * NOTE: You may add other fruits such as prunes, rasins, apricots, apples, etc. to this dish. Use approx. 1/4 to 1/2 cup of extra fruit(s) as a total amount. I have had this dish with dried apples, raisins, prunes, and dried peaches added to it.