Prawns in coconut milk gravy

This is too tasty to be my own recipe... but believe me, it is!!!!

Prawns: 400 gms
Onions: 3 diced
Ginger: 1 inch diced
Garlic: 8 diced
Tomato: 1 large chopped
Turmeric Powder: 1/4 tsp
Coriander Powder: 1heaped tsp
Chilly Powder: 11/2 tsp
Garam Masala: 1level tsp
Salt: as required
Thick Coconut Milk: 1 cup

Devein the prawns and keep aside.
Heat oil in a kadai and saute the onions, ginger and garlic till brown.
Add all the masala powder and saute till the raw smell is gone.
Add the tomatoes and saute till it turns limp.
Mix in the prawns and salt with 1/4 cup water and let it cook on a low flame.
When it is done, add the thick coconut milk and take off fire.
Serve hot with rice or chappati.