Heat oil in a kadai add onions and green chilly saute for 2 minutes.

Add dry red chilli and boiled chembu to this.Saute for 2 minutes.

Add tomatoes to this and saute for 2 minutes.Keep it aside.

Heat oil in another kadai and add grated coconut,turmeric powder,coriander powder and chilli powder saute for 2 minutes.

Fry until coconut becomes brown.

Grind this fried coconut in a mixer with 4 tsp water.

Add this ground mix to chembu masala which is kept aside.

Then add 1 cup of water to this and boil for 5minutes.

Heat oil in another kadai add mustard.when it splutters add red chilly,onion and curry leaf .

Add this tempering to chembu curry.

Boil for 2 minutes until gravy becomes thick.

Now traditional chembu curry is ready to serve.