Mutton pieces  are marinated in yogurt then slow cooked until tender.

There a tons of recipe for Korma.  One of them uses ground almond, cashew or grated coconut like this  and   this  . You can use chicken, beef or lamb for  cooking the recipe. .  .

This Mutton Korma uses  pounded fried onion and to be marinated for at least an hour.    The marination not only gives a tasty flavor  but also help to tenderize the meat.

Another difference  was, this Mutton Korma does not involve sauteing the spices in ghee as  you normally do, The spices, yogurt  and ghee are added together with mutton.

Pounded cinnamon, clove, peppercorn and cardamom are also  used