Wash and clean the lamb leg meat and chop it into meat filling, add green onion, ginger, salt, sesame oil, soy sauce and chicken essence. Add water to the meat mixture in one direction and twist it vigorously. Wash and slice winter melon, chop cilantro. Boil water in a pot, use a small spoon to add small balls into the pot, add until the meat mixture is still one-third of the winter melon, then put the rest of the meat, add vermicelli, cook until the vermicelli is cooked. Turn off the heat and add salt and parsley. With rice to eat, the soup can be added according to their own favorite chili oil.