1. Half a slice of duck, wash and drain.
2. Add all the ingredients and season to taste.
3. Marinate for 2 to 3 hours, preferably overnight.
4. Preheat the oven to 200 degrees, spread a layer of potato slices on the baking tray, and cut them thickly.
5. Put the marinated duck on top.
6. Put it in the oven, bake at 200 degrees for 40 minutes to color, and then bake at 180 degrees for 80 minutes.
7. After baking, let it stand for 10 minutes and then take it out and put it on a plate.
8. It's oily, tender, and delicious~
