Set the instant pot to saute mode. Add oil, then add 1 tbsp of ginger and garlic paste. Mix and cook for one minute.
Add lamb shanks and cook for 3-4 minutes, turning them around. Nihari masala and cumin-coriander powder if you are using it. Cook for 5-6 minutes.
Add 4 cups of water and cook low and slow for about 1 and a half hours. You can also use a pressure cooker or instant pot and cook for 50 minutes.
Make Flour Slurry
Mix flour and water to make the slurry.
Thicken the Nihari
Once the lamb shanks are tender add the flour slurry slowly while mixing. Cook for another 5 minutes.
Turn off the instant pot and leave it covered. This step will help the oil to come to the surface.
Garnish with ginger, green chilies, and cilantro.
Video
Notes
Once the nihari is cooked, cover the pot and leave it for about 5 minutes. This will help the oil to come to the top.
You can make this recipe with chicken or goat but cooking time will be 30-40 minutes.
You can also use homemade masala.