Add the washed mutton and salt in a pressure cook. Pressure cook for three whistles on high flame and on simmer for 10 minutes. Switch off and allow the pressure to go on its own.
Grind the onion and nuts into a smooth paste and set aside.
In a saucepan, heat ghee. Splutter cumin. Add the whole spices and dry chilli and saute for a few seconds.
Add the onion and saute till wilted. Do not brown.
Add the ginger garlic paste and cook till raw smell is gone.
Add in the ground paste along with some water (I pour into the jar and swirl it) and cook till there is no raw smell.
Now add the mutton along with all its stock and cook for five minutes.
Add in the cream and milk and give a good toss. Allow it to cook for a couple of minutes.
Now add the pepper and adjust the seasoning. Serve hot with rice or naan.