Thoroughly clean the chicken. Marinate the chicken in fish sauce and ground black pepper for 30 minutes.
Sauté ginger, garlic and onion in vegetable oil. Add the chicken and let it sit for 5 minutes. Dot not stir.
Pour in the rice wash or water and simmer for 30 minutes over low heat.
Add the green papaya and simmer for 5 minutes or until the papaya is cooked but still tender.
Drop in the chili leaves and season with fish sauce and pepper. Simmer until the leaves wither. Alternatively, drop in the leaves and season with fish sauce and black pepper. Switch of the heat and cover the pan for 5 minutes. Serve.