2. Production method: Wash chicken feet, cut off toenails, put them in boiling water for 3 minutes, and pick up the supercooled river.
3. Soak the mushrooms, remove the pedicels and wash them; Peel the horseshoe, wash it and cut it in half.
4. Put chicken feet and horseshoes into the pot, add appropriate amount of water, boil with strong fire, simmer for 1.5 hours, add mushrooms, and simmer for half an hour to taste.