1: Marinate the beef with baking soda, white pepper, seasoning soy sauce, Shaoxing wine, water, cornstarch, and oil. Let it sit for a while.
2: Heat oil in a pan and add minced garlic, followed by stir-frying the beef until browned.
3: Add scallions, onions, oyster mushrooms, and gluten balls to the pan.
4: Stir in Shaoxing wine, oyster sauce, soy sauce, and water.
5: Adjust seasoning with salt and add the cornstarch slurry to thicken the sauce.
6: Serve the stir-fry hot.