Marinate the Chicken: In a bowl, combine soy sauce, rice wine, cornstarch, garlic, and ginger. Add chicken pieces and marinate for 30 minutes to 2 hours in the refrigerator.
Prepare Vegetables: Cut bell peppers, zucchini, and carrots into uniform slices. Prepare bamboo shoots and mushrooms if using.
Make the Sauce: In a small bowl, mix dark soy sauce, light soy sauce, oyster sauce, rice vinegar, chicken broth, chili paste, sugar, and cornstarch. Set aside.
Cook the Chicken: Heat a wok over high heat. Add oil and stir-fry the marinated chicken until golden and nearly cooked through. Remove and set aside.
Stir-Fry Vegetables: In the same wok, add a bit more oil. Stir-fry dried chili peppers and Sichuan peppercorns for 10–15 seconds until fragrant. Add harder vegetables first (carrots, bamboo shoots), followed by softer ones (bell peppers, zucchini). Stir-fry for 2–3 minutes.
Combine Everything: Return chicken to the wok. Pour in the sauce and toss everything quickly to coat. Stir-fry for another 2–3 minutes until sauce thickens and everything is evenly glazed.
Serve: Garnish with chopped scallions and sesame seeds. Serve hot with steamed jasmine rice or noodles.