Remove the head portion (especially the eyes which are seen in black colour) of the Prawns and roast the Prawn in medium flame for about five minutes and keep it separately.
Peel the Mango, cut it and remove the seed and further cut it into medium size pieces
Heat the grated Coconut (stir the coconut occasionally) separately until its colour turns into golden
Heat the grated Coconut (stir the coconut occasionally) separately until its colour turns into golden
Then add the Coriander powder and Red Chilli powder into the coconut and stir the mix for about 3 minutes and keep the mix to cool. When the mix is cooled, grind it in paste form adding some water and keep the paste separately.
Heat Water in a Cheenachatty or cooking vessel and add the chopped Mango, Green Chilli, Onion and Ginger into the hot water
Allow to cook this mix for some time
Then add the roasted Prawn and masala paste along with Turmeric powder into the mix
Add some more water, if required and stir it well and allow to boil it for further 5 minutes.
Heat Oil in a frying pan and fry the chopped Shallots in the oil
When the colour of the Shallots turns into golden, add it into the already cooked Koottaan and stir it well. Chemmeen Koottaan is ready and it can be served with cooked rice/tapioca/Dosa etc.