Heat the oil and splutter the mustard seeds. Fry the curry leaves or basil leaves if you are adding them (Don't add both, add only either. Tastes a bit off when you add both the leaves. If you intend to make gravy, don't use Basil leaves)

Now add the Onions, garlic,chilli powder, coriander powder, turmeric powder and salt and fry the onions till lightly crisp.

Be careful about the salt though. Most of the dry prawns you buy in the market already contain salt.

To this add the prawns and fry for a minute till well coated. Add the coriander leaves and spring onion and mix and turn off.

Your dry fry is done

If you are doing the gravy, prepare the dry fry and keep aside

Now saute Onions till lightly pink in a pan and add a cup of water to it.

Once the water boils, add the dry fry and simmer till you have just a moist gravy.

Gravy is done.

A few other options would be to add coconut shaving while frying the prawns, adding coconut milk to the gravy and boiling it once. All these just taste too good. Enjoy