- Defrosted crocodile tail, blanch them in water with 2 pieces of ginger and 1 bunch of scallion for 5 minutes for later use. 
- Soak the black fungus for an hour, cut the bottom lump and cut them into large pieces. Rinse thoroughly for later use. 
- Soak the snow fungus for 4 hours until they turn soft and viscous. Refresh the water 2 times in between and tear them into smaller pieces. 
- Rinse and soak the cultivated cordycep until soft. Cut eryngii mushrooms and rinse thoroughly for later use. 
- Heat the wok, add oil, stir fry ginger slices, saute crocodile tail, black fungus, snow fungus, featured cultivated cordycep and eryngii mushrooms. 
- Add 1L water and cook for 15 minutes with oyster sauce, sugar and chicken powder. Stew it for 15 minutes more until soft. Ready to serve.