Step 1 of 2

Heat the vegetable oil in a large frying pan over medium-high heat. Add the lamb and cook until browned on all sides, about 5 minutes. Season with saffron, salt and pepper to taste; stir in all but 4 tablespoons of the onion, and pour in the water. Bring to the boil, then cover, reduce heat to medium-low, and simmer until the lamb is tender, about 15 minutes.