First heat the oil in a soup pot. Then fry the ginger and garlic until they are both slightly brown and fragrant. Then add in the chicken pieces and fry until they too turn slightly brown. Then add the water & cover the pot and simmer for an hour.
Next add in the papaya, spinach or water cress & fish sauce. Then allow the soup to simmer for about 45 minutes. Then Add the salt and stir well. Then serve with rice and other main course dishes.