1. Remove the roots of Lentinus edodes and wash them. Cut the top with a cross shaped knife
2. Put the scallion and garlic into a small bowl for use. Add oyster sauce, soy sauce, chicken essence and water into the small bowl
3. Pour water into the pot, add salt after boiling water, add mushrooms, blanch for 2 minutes, remove and set aside
4. Medium heat, hot pot, cold oil, put boiled mushrooms
5. Pour in the sauce, turn to medium low heat, cover the pot and simmer for 3 minutes