How to Make It
In a large skillet, heat 3 tablespoons of the oil over moderately high heat. Add the onion and garlic, season with salt and cook, stirring occasionally, until the onion is softened, about 12 minutes. Add the stock, vinegar, soy sauce, bay leaves and pepper and bring to a boil over high heat. Stir in the cornstarch slurry and simmer the sauce for 1 minute.
Meanwhile, in another large skillet, heat the remaining 1 tablespoon of oil over moderately high heat. Season the chicken with salt and cook skin side down, turning once, until browned, about 8 minutes. Add the chicken to the sauce, cover partially and simmer over moderately low heat, turning the chicken once, until cooked through, about 20 minutes. Discard the bay leaves and serve with rice.