Slice the onions, and puree the tomatoes.
To cook the mutton , start by heating ghee, and add whole spices-add bay leaf, black peppers, green cardamoms, cloves, cinnamon stick. Sauté these for 2-3 minutes till the ghee is infused with all flavours.
Now add the ginger ,garlic, cumin seeds and mustard seeds paste. Saute for 3-4 minutes till the raw smell of ginger garlic goes away.
Now add sliced onions, and let it sauté till the onions are nicely fried and golden brown.
Once the onions are done, Deghi mirchi . Mix and add the mutton pieces. Cover and cook for 5-10 minutes
Now transfer all these to a pressure cooker, and add salt, Delhi mirchi powder, turmeric powder, and mix well. Add pureed tomatoes, and mix.Add 1/2 a cup water, close the cooker lid and pressure cook for 18-20 minutes.
Check if the mutton is tender, and cooked properly. If not , you can pressure cook it for longer. Once it is done, sauté it nicely on high heat for 5 minutes . You can transfer it back to a pan, or cook it it the pressure cooker with lid open
Add Meat masala (this is optional but adds so much more flavour)- you can use MDH meat masala which is easily available in asian stores, or order it online at amazon- link is in my sidebar.Add slit green chillies, and coriander. Let the mutton cook for 10-15 minutes, and any water that is left has dried completely.
Sprinkle garam masala, fresh chopped coriander and serve hot with paranthas, chapati, naan bread or bread kulcha , with a side of onions lemon wedges.I love having it with a warm crispy slice of bread. For me that is the best combination.