Heat ¼ cup oil in pan, add 1 chopped onion, 1 medium piece of ginger and 4 – 5cloves of chopped garlic. Sauté till brown.Now add ½ kg mutton and fry well.In a bowl mix together 250 gm yogurt, ½ tsp cardamom powder, 1 tbsp coriander powder, 1 tbsp chili powder and 1 tsp turmeric. Add yogurt mixture to the pan.
Now add 1 – 1 ½ cup water, cover and cook till mutton is tender.Add 3 boiled & chopped tomatoes, 25 gm ground walnut, 1 bay leaf and salt to taste. Fry well on high flame.Lastly sprinkle with 1 tsp all spice powder and serve.