1. Buy the matsutake and clean it.
2. slice.
3. Beef slices.
4. Put oyster sauce, salt, sugar, pepper, cornstarch, and oil to marinate for ten minutes.
5. Remove the matsutake mushrooms in the water and set aside.
6. Boil the ginger in a saucepan with water.
7. Put the good matsutake mushrooms in the pot and cook for 1 minute.
8. Put the marinated beef and cook for half a minute, add coriander, and adjust a little salt.
9. The delicious and nutritious soup is complete.
