Green Curry with Sweet Potato and Eggplant

1 tbsp olive oil
1 medium onion, chopped
1-2 tbsp green curry paste
1 medium sweet potato, peeled and coarsely cubed
400mL coconut milk
1 cup water
1 medium eggplant, quartered and sliced
6 kaffir lime leaves
2 tbsp fish sauce (optional)
2 tbsp lime juice
2 tsp lime rind
2 tsp soft brown sugar
fresh coriander leaves

Heat oil in large work or frying pan. Add the onion and curry paste to the wok and stir for 3 minutes over medium heat. Add the coconut milk and water. Bring to the boil; reduce heat and simmer, uncovered for 5 min. Add the sweet potato and cook for a further 6-7 minutes.

Add the eggplant and kaffir lime leaves to the wok and cook for a further 10 minutes, or until the vegetables are very tender, stirring occasionally.

Add the lime juice and rind, brown sugar and fish sauce (optional), toss until well combined. Sprinkle with fresh coriander and serve with steamed rice. Garnish with extra kaffir lime leaves if desired.