1. Add a spoonful of soy sauce, half a spoonful of oyster sauce and a little pepper to the beef slices, stir evenly and marinate for 20 minutes.
2. Heat oil in a hot pot, add minced garlic and stir-fry until fragrant, then pour in mung bean sprouts and stir-fry until broken, add a spoonful of Chili powder, add a proper amount of water to boil, add leeks, and finally pour in marinated beef and cook it, adding a little salt?