1.Season the chicken legs generously with salt and pepper. Turn Instant Pot to the high sauté setting and add oil. Once oil shimmering, 4 pieces of chicken and brown on both sides, about 7-8 minutes. Set pieces aside on a plat, and cook remaining 4 pieces.
Return all the chicken to the Instant pot and add soy sauce, light brown sugar, vinegar, onion, garlic, bay leaves, and onion. Close and lock the lid, and High pressure cook for 8 minutes.
Once done, quick release pressure and carefully remove lid. Turn Instant pot onto high sauté setting, and all sauce to come to a boil and reduce it until dark brown color is achieved and sauce has thickened. Approximately 20-22 minutes.
Remove bay leaves, and transfer the chicken and sauce to a serving platter, sprinkle with scallions and serve over your favorite rice.