Here's what I did: I marinated my elbow evenly with sweet noodle sauce for half an hour, then poured some water into the pot and brought it to a boil. Add elbow, onion, ginger, star anise and cinnamon, add appropriate amount of rice wine, soy sauce, rock sugar and salt when boiling again, cook with low heat until the soup is almost dry, take out, cool and slice, and then pour the sauce.