In a mixie jar, add the red chillies, cinnamon, cloves, cumin seeds, and the tomatoes.
Grind all these to a smooth paste. If needed, add little water.
In a pan, add oil and oil is little hot, add the marinated prawns.
Saute the prawns nicely.
Prawns gets cooked with the water from the prawns itself.
Do not cook them fully. Just cook them only for 75%. Because, when we add to masala, it needs to be cooked again.
To check if prawns are cooked correctly, the prawns gets curled up.
Now remove the prawns and keep it separately.
In the same pan, add coconut oil.
When it is hot, add the cumin seeds again, curry leaves, and fry them slightly for 1 minute.
Add the finely chopped onions now and saute them nicely.
Onions needs to be sauted nicely. Add the ginger and garlic paste.
Again fry them until the raw smell of gg paste goes off.
Add the tomato paste now and cook them for around 10 minutes. You can cover and cook it.
Once the paste becomes thick, include the 75% cooked prawns now.
If masala is more thick, add little amount of water and cook the prawns for around 5 min.
Adjust the salt now.
Add the sugar and mix well.
Keep the flame to low, as the prawns are already cooked well, else, they becomes rubbery.
If you need, you can add the lemon juice or vinegar.