Black pork curry is the most famous Sri Lankan pork dish that everyone loves. The fatty pork pieces cooked in aromatic spices in low heat for a long time until they melt in your mouth. Try this curry once, you're gonna think of this curry every time you see a piece of pork.
marinate the pork pieced with all the marinating ingredients given in the list above. Let it marinate for at least 30 minutes to overnight in the fridge. ( longer marination is better)
Heat a pot and add coconut oil. When the oil starts to heat up add 1/4 tsp salt, chili powder, and unroasted curry powder. Fry them in low heat until the spices become dark brown to almost black. Turn off the heat if it's smoking too much. Stir continuously.
To that add crushed ginger and garlic, powdered/crushed cardamom and cloves, pandan leaves, curry leaves, and lemongrass. Mix well with the spices.
In about 30mins, taste the gravy and see if it has enough salt. If not add a little bit more. Cover again and cook in very low heat for about another 30 mins until the gravy thickens up and the pork becomes tender.
The longer you cook, the darker it gets. If you feel like the curry is drying out, add a bit more water and continue cooking.