Cut chicken in small chunks and season with salt and pepper.
Dice eggplant, mince onion and garlic and chop cilantro.
Heat a large pan with oil on medium heat. Sauté chicken for 2 minutes.
Add diced eggplant, onion, garlic and coriander with 2 tablespoons of water, stir and cover with a lid. Cook for 5 minutes.
Add diced tomato, curry paste and coconut milk. Stir and bring to a simmer. Cook for 5 minutes on medium low heat. If you want eggplant to be very soft, cook for 2 more minutes.