In a medium bowl, whisk the Shaoxing wine, soy sauce, and cornstarch together until combined. Add in the chicken and toss to coat. Let marinate for 10-15 minutes.
1½ pounds boneless, skinless chicken breasts, 1 tablespoon Shaoxing wine, 1 tablespoon low-sodium soy sauce, 1 teaspoon cornstarch
In a medium bowl or liquid measure, whisk all the sauce ingredients together until combined.
⅓ cup low-sodium chicken broth, 2 tablespoons soy sauce, 2 tablespoons black vinegar, 2 tablespoon Shaoxing wine, 1½ tablespoons granulated sugar, 1 tablespoon hoisin sauce, 1 tablespoon toasted sesame oil, 1 teaspoon cornstarch
Heat a large nonstick skillet, or wok, over medium-high heat. Add 1 tablespoon of oil. Once hot, add in the bell peppers, celery. Cook, stirring often until just tender, 4-5 minutes. Remove from the pan and set aside.
2½ tablespoons vegetable oil, 1 red bell pepper, 1 green bell pepper, 2 ribs celery
Add in another tablespoon of oil. Once hot, add in the chicken, cooking in batches to avoid crowding the pan if needed. Cook the chicken, stirring often, until browned, 3-4 minutes.
If cooked in batches, add any additional chicken back into the pan. Add the remaining ½ tablespoon oil, garlic, ginger, scallions, and dried chilies. Cook for 60 seconds until fragrant.
3 cloves garlic, 2 teaspoons minced fresh ginger, 5 scallions, 8 dried Chinese chilies
Add the vegetables and sauce into the pan. Bring the sauce to a simmer and cook until thickened, 1-2 minutes. Add on the peanuts and stir to combine.
⅓ cup roasted unsalted peanuts