Stir-fry the chopped 1 Eggplant with Salt in 2 tbsp Vegetable cooking oil over medium heat for 5 minutes or until it turns green. Set aside.
Bring a non-stick pot to hot, add 2 tbsp Vegetable cooking oil. Add the chopped 3 Shallots and diced 3 Kaffir leaves. Stir until fragrant.
Make a well in the centre of the mixture. Add the 2 tbsp Green curry paste, 2 tbsp Coriander root, 1 tsp Galangal powder, 1 tbsp Lemongrass, chopped 1 clove Garlic, 1 tsp Cumin seed, 1 tsp Red curry powder, Salt and Pepper (to taste), 5 tbsp Fish sauce, and 1 tbsp Palm sugar. Mix it together.
Add the partially-cooked 1 Eggplant (previously set aside), chopped 3 White potatoes, and chopped 1 kg Boneless, skinless chicken breasts. Stir well for 3 minutes.
Optional: Start cooking the 1-1.5 cups White jasmine rice, if desired.
Add the 800 ml Thick coconut milk, let it boil. Simmer until the sauce thickens and the chicken and vegetables are cooked.
Stir in the sliced 1 Handful Green beans. Let it boil for 3 minutes.
Garnish with the Green leaf basil, as desired.
Serve hot with jasmine rice.