Preparation materials: a handful of black pepper, half an onion, two spoonfuls of oyster sauce, five garlic seeds, five mushrooms, 50g soy sauce, a small amount of soy sauce, a small amount of tomato sauce and a proper amount of corn oil?

First prepare ingredients, black pepper, garlic, onion and mushrooms.

Second, put the oil in the pot, put the garlic and stir-fry the onion. Add all other seasonings and stir fry.

Third, simmer for a few minutes on low heat to dry the water.

Fourth, put more oil, which can last for a long time.

5. Put it in a glass bottle and seal it after cooling slightly, and take it out when necessary.