Add water or stock ,stir only to mix and pork or chicken not stick to the pot bottom ,then let it simmer approximately 1 hour on low heat for pork leg,stir occasionly ,half an hour for chicken ,add peeled hard boil eggs ,let it simmer again another 1 hour or half an hour add more stock or watr if soup too dry ,taste the soup ( if not salty yet add salt or skip it ),taste pork or chicken if it tendered ,turn heat off,serve hot garnish with coriander,some red pepper slices and steamed jasmine rice :)