Wash rice and put in a small saucepan with all above ingredients. Bring it to a boil on high heat, then cover and simmer gently until all the water is absorbed. The grains should be tender but firm. Set aside uncovered. Heat oil in a large saucepan (medium heat), add onions and fry till golden around the edges, add garlic and ginger. All at once add all the spices and fry one minute longer. Add all other ingredients except saffron. Add salt to taste. Cover and cook on low heat till chicken is tender, stirring occasionally (about half hour). There should be very little liquid remaining in the pan. (During cooking a little water may be added if necessary to avoid sticking). Add half the prepared rice, spreading it evenly over the mixture, drizzle one tablespoon of oil over it and add the saffron mixed into two tsp of milk. Cover with remaining rice, cover and cook on very low heat for ten minutes. Serve accompanied with whipped, lightly sweetened yogurt. The chicken could be substituted with half pound of mixed vegetables.