Operating steps:
1. Seeds of wax gourd are removed and cut into large pieces, Coix lachryma-jobi seeds are soaked in water, onions are cut into sections, and muscovy ducks are cut into small pieces.
2. Boil the water in the pot, put the muscovy duck in the pot, boil until it boils, remove and drain.
3. Pour a small amount of oil into the pot, add onion, ginger slices and duck pieces, stir-fry until the oil comes out, and take it out for later use.
4. Bring Coicis Semen to a boil, add duck, onion, ginger and wax gourd, boil over high fire and stew for 30 minutes.
5. Pour in pepper and salt and cook for 5 minutes before drinking.