Marinate Chicken: Combine chicken, soy sauce, Shaoxing wine, white pepper, cornstarch, baking soda, and neutral oil. Massage and marinate in the fridge.
Prepare Vegetables: Smash garlic, grate ginger, slice green onions (keeping whites and greens separate), slice carrot, and cut broccoli into pieces.
Make Sauce: Mix soy sauce, oyster sauce, dark soy sauce, sugar, Shaoxing wine, chicken bouillon powder, water, and cornstarch in a small container.
Blanch Broccoli: Boil water, add a pinch of salt and broccoli for 1 minute, then shock in ice water.
Cook Chicken: Heat oil in a wok, add marinated chicken, sear for 1 minute, then flip and cook for 3-4 minutes until cooked through.
Sauté Aromatics: In the same wok, add oil, garlic, ginger, and green onion whites. Sauté for 1 minute.
Stir-Fry Vegetables: Add broccoli and carrot to the wok, stir-fry for 1 minute.
Combine Chicken and Sauce: Add chicken back to the wok, pour in the sauce, stir-fry for 1-2 minutes until thickened.
Finish Dish: Add sesame oil and green onion greens, mix well, and serve.