Picked up this recipe online and tried it for lunch today. Really simple.
First wash the fish with lime /water, rub some salt and haldi/turmeric and let it sit. Meanwhile heat some oil in a wok and add sliced onions. When it’s brown add in a ground paste of peppercorn, dry red chilli, garlic pods, coriander and cumin seeds. Add this to the wok and cook for a while. Now add some ground coconut to this and simmer. At this point you need to add something sour..it could be tamarind, kokum (which I used) or even tomatoes. Add 2 cups of water and now drop the washed fish into this. Cook for 5 to 10 min. Enjoy with rice