
This Chinese black pepper chicken is glossy, savory, and packed with crisp-tender vegetables. Thin slices of chicken are quickly seared, then tossed in a peppery brown sauce that is perfect over steamed rice.
Slice the chicken thinly across the grain. In a bowl, combine the chicken with 3 tbsp water, 1 tsp cornstarch, 1 tsp neutral oil, 2 tsp oyster sauce, and 1/2 tsp coarsely ground black pepper. Massage until the liquid is absorbed, then let it marinate for 10 minutes.
In a small bowl, whisk together the chicken stock, remaining oyster sauce, light soy sauce, sugar, dark soy sauce, and sesame oil. Set this sauce near the stove before you begin stir-frying.
Heat a wok or large skillet over high heat until very hot. Add 2 tbsp neutral oil, then spread the chicken in a single layer. Sear for 1 to 2 minutes, turning just until the pieces turn opaque. Transfer the chicken to a plate; it will finish cooking later.
Reduce the heat to medium. Add the remaining 1 tbsp neutral oil, then stir-fry the garlic and onion for about 20 seconds, just until fragrant. Pour the Shaoxing wine around the hot sides of the wok and stir to loosen any browned bits.
Add the bell pepper, celery, and remaining black pepper. Stir-fry for about 30 seconds, keeping the vegetables crisp and bright.
Pour in the prepared sauce and stir well, scraping the sides and bottom of the wok. Bring the sauce to a lively simmer.
Stir the remaining cornstarch with 1 tbsp water to make a smooth slurry. Drizzle it into the simmering sauce while stirring constantly, then cook for 10 to 15 seconds, until glossy and lightly thickened.
Return the chicken and any accumulated juices to the wok. Toss until every piece is coated and the chicken is cooked through. If the sauce is too thick, loosen it with a splash of stock or water; if it is too thin, simmer briefly or add a little more slurry.
Taste and adjust the color or seasoning if needed with a small dash of dark soy sauce. Serve hot with steamed rice.
Use freshly cracked or coarsely ground black pepper for the boldest flavor. Chicken thighs can be used instead of breast for a juicier stir-fry. Keep the wok very hot when searing the chicken, and avoid overcrowding so the meat browns instead of steaming. Store leftovers in an airtight container for up to 3 days and reheat gently with a splash of water.