1 tbsp oil
2 large onions, 1/2 chopped finely, rest sliced length-ways into thick slices
4 large tomatoes; blanched, and chopped finely
2 tbsp yogurt
4 cloves garlic; minced
2 inch ginger; grated
2 green chillies; minced
2 heaped tbsp coriander/cumin powder
1/4 tbsp garam masala
1/3 cup chopped coriander
Heat the oil in a pan, add the finely chopped onions and fry until golden brown.
Add tomatoes, garlic, ginger and chilies. Stir and fry for 5 minutes, add the yogurt, mix and cook for a few minutes.
Add turmeric and coriander/cumin mixture fry for another 5-7 minutes, until it is homogeneous.
Add rest of the onions, mix and cook for a further 10 minutes.
Add prawns and salt, stir until they are coated with the tomato mix. Cook for about 5 minutes.
Add garam masala and coriander.