Slice the beef thinly across the grain (20 minutes in the freezer first makes this much easier). Toss with 1 tbsp soy sauce, the Shaoxing wine, egg white, cornstarch and baking soda if using. Set aside for 15 minutes while you prep everything else.
Heat a large pot or wok over high heat with 1 tsp of the oil. Add the napa cabbage, bean sprouts and celery with a pinch of salt and stir fry for 2 minutes until just wilted but still crunchy. Tip them into a wide, deep serving bowl and spread them out. They are the bed for the beef.
Wipe the pot, add 2 tbsp of oil over medium heat. Add the doubanjiang and fry for about 2 minutes, stirring, until the oil turns deep red and the paste smells toasty rather than raw. Add half the garlic and all the ginger and cook 30 seconds more.
Pour in the stock, soy sauce and sugar. Bring to a boil, then keep it at a strong simmer for 3 minutes so the flavor comes together. Taste. It should be salty and rich because it is going to season plain vegetables and beef.
Turn the heat down so the broth is just barely simmering. Add the beef slices one handful at a time, separating them with chopsticks so they do not clump. Poach for 60 to 90 seconds only, until the slices have just turned from red to pale brown. Do not boil hard and do not walk away.
Ladle the beef and broth over the vegetables in the serving bowl. Scatter the dried chilies, remaining raw garlic, whole Sichuan peppercorns, chili flakes and scallions in a pile on top of the beef.
Heat the last 1 tbsp of oil in a small pan until it shimmers and just starts to smoke. Pour it directly over the pile of chilies and garlic. It should sizzle loudly for a few seconds. Finish with the ground Sichuan pepper and cilantro. Serve with rice, fishing the beef and vegetables out of the broth as you eat.