Marinate with water starch, oyster sauce, soy sauce, pepper, salt, bean paste and cooking wine for 20 minutes.

Clean the onion, cut it into small pieces, dip it in raw flour, and wrap each onion with a thin layer of raw flour.

Prepared ingredients. Slice garlic, ginger and pepper at will.

Heat the wok, add proper amount of oil, heat it to 9 layers, add beef, stir fry quickly until cooked, and put it on a plate for later use.

Wash the pan, add appropriate amount of oil, heat to 7 layers, add ginger, garlic and pepper, and stir-fry until fragrant.

Add onions in turn and stir-fry for a while, while adding the right amount of salt.

Then pour in the fried beef and balsamic vinegar, stir fry quickly, and then take the pan and put it on the plate.