preserved duck lettuce: preserved duck needs to be soaked in cold water in advance, to get rid of a little salty, and then use a pressure cooker, add dried chili, ginger, garlic, the preserved duck processed, and then frying pan, put the oil, garlic, ginger, peppercorns, etc., lettuce fried first, and then poured into the preserved duck with an appropriate amount of water to burn together, according to personal taste to add seasonings, burned to be ready to go out of the pot.