Ingredients:

Karimeen -1 kg
Chilli powder -1 tsp
Turmeric powder -1 tsp
Pepper powder -1/2 tsp
Vinegar -1 tbsp
Salt -1 tsp
Oil -for frying

Gravy:

Onion -1 big sliced
Ginger -2 tbsp chopped
Garlic -1 tbsp chopped
Green chillies -5 slit
Curry leaves -2 sprigs
Coriander powder -3 tsp
Turmeric powder -1 tsp
Pepper powder -1 tsp
Thin coconut milk -2 cups
Thick coconut milk -1 cup
Vinegar -2 tbsp
Salt -to taste
Coconut oil -2 tbsp
Method:

In a vessel, mix together chilli powder, turmeric powder, pepper powder, vinegar and salt. Smear this paste on the fish pieces and keep aside for half an hour. Fry them in oil till light brown in color. Keep aside. Heat oil in a large pan, fry onions, ginger, garlic, green chillies and curry leaves till the onion tuns light brown in color. Add coriander powder, turmeric powder and pepper power. Fry for few seconds and add thin coconut milk, vinegar and salt. Cover and cook till it boils. Now add the fried pieces of fish. Pour some gravy over the top of the fish pieces, cover and let it simmer for about 10 minutes on low flame. Open the lid and add the thick coconut milk. Mix gently or twist the pan. When it is about to boil, put off the flame. Serve hot.