Peel the mangoes, chop into
small pieces then leave in a bowl of water to avoid
discoloration.
Grind the coconut, chilies,
garlic and onions to a paste the place in a pan with
the drained mangoes, prawns, curry leaves and oil.
Simmer gently
until hot then add the water and season to taste
with salt. Bring to the boil and simmer gently until
the ghee appears on the surface. Serve hot with
plain rice.