Recipe for Kerala dish Mathi peera pattichathu:

Ingredients needed for mathi peera pattichathu
500 grams Mathi
1- 1/2 cups coconut
6 green chillies slit
1 piece ginger chopped
6 small onions
curry leaves
1 tsp chilli powder
1/4 tsp turmeric powder
4 pieces kudumpuli
3-4 gr chillies
salt
oil

How to prepare Mathi peera pattichathu:
Crush coconut, small onions and green chillies together to make a coarse paste.
Clean the fish nicely. Mix sliced onions, slit green chillies, curry leaves, chilli powder, turmeric pd, kudam puli, salt to taste  and 1/2 cup water.
In a manchatti or a saucepan, mix all the ingredients with the cleaned fish. Cook on simmer flame  till the fish gets cooked.
When the fish is done add the crushed ingredients to the fish. Mix well and dry the excess water.
Pour the coconut oil on top of the fish and serve with the rice.