Some recipes call for boiled, flaked fish. You can use something like canned tuna that is ready for consumption (no cooking needed). Alternatively, boil white fish (do not use red fish) with turmeric, salt, pepper and lime juice for 5 minutes. Then proceed to take away the skin and bones and flake it.
If you’re using prawns, boil for 1 minute only. Prawns cook very quickly and if you keep them on heat for too long, they will turn hard.