- Soak the white fungus in warm water for 1 hour. Rinse, remove the stems, and cut away any discoloured or hard parts. Wash wolf-berries and drain.
- Bring 8 cups of water to a boil in a large pot. Add the beaten egg white, rock sugar and sugar, stirring constantly. Skim off any foam and continue boiling until the water turns clean. Add the white fungus and wolf-berries and return to a boil. Cover the pot and simmer over low heat for 1 to 1 1/2 hours. Remove and serve.