Wash, cut, and get everything ready – aubergines halved, chillies sliced, kaffir lime leaves torn, galangal sliced and lightly bruised, basil leaves picked, chicken sliced.
Heat the oil in a pan over medium heat and add the green curry paste. Stir until fragrant, then add a small amount of coconut milk to blend with the paste.
In a separate pot, pour in the rest of the coconut milk and stir while warming.
Add the aromatics: galangal, lemongrass, and kaffir lime leaves to the coconut milk. Stir gently to release their flavours.
Add the Thai aubergines and simmer first, as they take longer to cook than the chicken, until tender
Stir in the curry paste mixture from the pan into the pot.
Add the sliced chicken and let it cook through.
Season the curry: add brown sugar, palm sugar (if using), and fish sauce. Taste and adjust seasoning if needed.
When everything is cooked, top with Thai basil and sliced chillies. Serve hot with jasmine rice or your preferred rice.