Pressure cook mutton (refer notes) with crushed ginger & garlic (1 tbsp, each), green chilli (3), cubed potato, salt, pepper powder and 2 cups water, till mutton is cooked.
Heat oil in a deep and wide pan and add the crushed whole masala (cardamom, cloves, cinnamon, fennel seeds and peppercorns). Fry for a min. Add sliced onion and cook till it begins to brown (no need to brown).
Add crushed ginger & garlic (1/2 tbsp, each), green chilli (2) and curry leaves. Cook for 2-3 mins, till the raw smell goes. Add the cooked mutton along with the gravy. Mix well. Bring it to boil, simmer and cook for 5-7 mins, till the gravy reduces a bit. Add medium thick coconut milk and mix well. Bring to boil and simmer for 7-8 mins. Add thick coconut milk and mix well. Cook for 5-7 mins, till the gravy becomes thick. Let the stew rest for half an hour for the flavour to settle in.
Serve with Appa, Idiyappam, Puttu, Roti or Bread
Notes
You can also use Beef for this recipe.To pressure cook mutton - Pressure cook on full flame till the first whistle comes. After that, reduce flame to low-medium and cook for 8-10 whistles. Keep it closed till the pressure drops, around 10-15 mins. The cooking time may vary depending on the type of mutton you use. I use Indian Mutton for this recipe.The stew tends to thicken as it rests, so adjust the consistency accordingly.