Has anyone ever cooked a delicious duck neck?

I studied duck neck in Wuhan Jingwu in 2005, and it cost 5800 yuan. I have been in the duck neck business for two years. In the early years, the duck neck business was really good. After all, I didn't do much at that time, and my business was good. I earned some money more or less in two years. Later, business became difficult, and I gave up after trying hard. I found it after sorting out the information today, so I sold it and let those who sold the formula at a high price go. But the price is around 5000 yuan. Of course, in order to return the franchise fee after joining, there are also hundreds of pieces to sell. Most of them are true, but fraudsters are not excluded.