Step 1

Cut the fish into four pieces each. Marinate with 1/4 teaspoon of turmeric, chilli powder, salt and lemon juice.

Step 2

In the meanwhile, heat the olive oil. When hot, add the curry leaves and mustard seeds until the latter begins to pop.

Step 3

Add the onion, garlic, ginger and chillies. Cook until the onion is soft and translucent.

Step 4

Now add the remaining one teaspoon of turmeric powder. If it sticks add a bit of the coconut milk and continue to fry for about a minute.

Step 5

Add the remaining coconut milk and tomato. Drop the heat to low and let it come to a boil slowly.

Step 6

Now add the pieces of fish. Cover and cook until the fish is cooked through. Adjust seasoning and add the vinegar.

Step 7

Take off the heat, add the chopped coriander and serve with steamed white rice.