1. Heat oil in a pressure cooker. Add onions and cook until golden.
  2. Once the onion is nice and brown, add ginger garlic paste and sauté for a min or so.
  3. Add tomatoes and green chillies. Cook this till tomatoes turn mushy.
  4. Add all the spice powder and along with salt and chopped walnuts. Mix well with the masala. The masala should be thick and almost like a paste.
  5. Now add mutton and toss well with the masala.
  6. Keep tossing till the masala coats the mutton pieces well and gets a little dark brown in colour.
  7. Now add one cup of water. Cover and pressure cook for 4 whistles, simmer the pan for 15 mins. Turn off the heat and let the steam go all by itself.
  8. While the mutton is cooking, dry roast the coconut in a dry pan till it is golden brown. Transfer it to a blender and blend it into a fine puree.
  9. Once the mutton is cooked, add the coconut paste in it and simmer for another 10 to 15 mins till oil separates on top.
  10. Garnish with whole walnuts. Add coriander leaves and turn off the heat.
  11. Serve with rice or anything you like!