For preparing chemmeen in coconut milk, first mix prawns, half of onion, 2 green chillies, ginger, garlic, turmeric powder and salt.
Cook the prawns with coconut milk.
When cooked, keep aside the prawns.
Heat a kadai and pour oil.
Fry the rest of the onion, green chillies and curry leaves.
Add cooked prawns, chilly powder and garam masala into it.
Make it a semi thick gravy.
Chemmeen in coconut milk is ready. Serve hot.