So here is the way I did it...
First take a pan.Pour 1 tablespoon coconut oil..Put finely chopped one big onion.Keep the flame on the lowest..
Then I went to wash my fish(500 grams)..Clean it thoroughly..Wash your hands properly.OK back to cooking...
Just stir the onions once...It should be light brown in color.Next put the fish(I didn't cut the fish..it is up to you).Put half teaspoon turmeric powder,2 full teaspoon chilli powder and one big lemon size ball of tamarind extracted juice (and I mean a big sized tamarind..for me it tastes good when its more sour)
Just mix it carefully without disturbing the fish much.close the lid.
Put 1 spoon cumin seeds..
Put 2 tablespoon freshly ground coconut.
Put a strand of curry leaves and close the lid and cook till fish is done..
Serve after some time...