To prepare the pork belly, use a fork to pierce the pork belly pieces all over to help them absorb flavor during cooking.
To make the braising liquid, in a bowl, combine the soy sauce, dark soy sauce, Shaoxing wine, sugar, and water, then mix well.
To sear the pork belly, in a pan over high heat, add the pork belly pieces and sear until golden on both sides, about 2 minutes per side. Add the ginger, scallions, cinnamon stick, star anise, and bay leaves.
To braise the pork belly, reduce the heat to medium and pour in the braising liquid. Cover the pan and braise for about 20 minutes until the pork is fully cooked and tender.
To finish the dish, uncover the pan and increase the heat to high. Reduce the sauce for about 3 minutes, spooning the sauce over the pork until it becomes glossy.
To serve, slice the pork belly into bite-sized pieces and serve with steamed rice and vegetables.