Preparation

Marinate the beef

• In a large bowl, whisk the oyster sauce, sesame oil, soy sauce, Shaoxing, sugar, cornstarch, and pepper. Add the beef and toss to thoroughly coat. Refrigerate for 20 minutes.

Make the stir-fry

• Heat a 14-inch wok over high heat for 45 seconds. Add 1-1/2 Tbs. of the oil and swirl it around the sides of the wok to coat. When a wisp of white smoke appears, add the ginger and cook, stirring, until beginning to brown, 20 to 30 seconds. Add the chiles, carrot, bell pepper, cucumber, snow peas, bamboo shoots, and preserved vegetable and stir-fry until the vegetables are brightly colored and just wilted, 2 to 3 minutes. Transfer the mixture to a large plate; discard the ginger.
• In a small bowl, stir the chicken broth and cornstarch until smooth; set aside.
• 消灭的锅和清洁刮刀towels. Return the wok to high heat for 45 seconds. Add the remaining 2-1/2 Tbs. peanut oil and swirl to coat the sides of the wok. Add the garlic and stir-fry until fragrant, about 20 seconds. Add the beef and its marinade, spreading it in a single layer around the sides and bottom of the wok; tip the wok from side to side to keep contact with the flame so the meat browns evenly on the underside, about 2 minutes. Stir the beef, add the vegetables, and stir-fry for 1 minute. Make a well in the center of the mixture, stir the cornstarch mixture to loosen, and add it to the wok. Stir the liquid until it bubbles, about 1 minute, then toss everything together and serve.