01 - Combine chicken slices with soy sauce, Shaoxing wine, and cornstarch in a bowl. Mix thoroughly and let stand for 10 minutes to allow flavors to penetrate.
02 - Whisk together hoisin sauce, soy sauce, rice vinegar, sugar, sesame oil, and water in a small bowl until sugar dissolves completely. Set aside for later use.
03 - Heat 1 tablespoon vegetable oil in a large wok or skillet over high heat. Add marinated chicken and stir-fry until just cooked through, approximately 3–4 minutes. Remove chicken and set aside.
04 - Add remaining oil to the wok. Add garlic and ginger, stir-frying for 30 seconds until fragrant but not burned.
05 - Add bell pepper and carrot to the wok. Stir-fry for 2–3 minutes until vegetables become slightly tender but still retain crispness.
06 - Return chicken to the wok along with scallions and bean sprouts. Stir-fry for 1 minute to heat through.
07 - Pour prepared sauce over the mixture, tossing well to coat all ingredients evenly. Cook for another 2 minutes until sauce thickens slightly and everything is heated through.
08 - Transfer to serving plates immediately. Garnish with additional sliced scallions if desired. Serve hot alongside steamed jasmine rice or thin pancakes.