Devein and wash the prawns. Set aside.
Slice onions and put them in blender to make paste.
Add 1 Tbsp oil in a pan and fry onion paste till brown. Add ginger garlic paste and sauté till the raw smell disappears.
In another pan heat oil and add prawns and fry for 2 minutes. Add onion paste, salt and mix well.
Grind the coconut in a mixer to a smooth paste and add this paste to the prawn’s gravy.
Add garam masala powder, coriander powder, cumin powder, turmeric powder and red chilli powder, chopped spring onions and mix well.
Add little water and cook till the prawns are cooked.
Garnish with coriander leaves and serve hot with steamed rice or roti.