Combine the Marinade ingredients in a large bowl and mix well. Add the pork pieces and mix until well coated. Cover and marinate in the refrigerator for 2–3 hours.
Heat the oil in a wok over high heat. Roll the marinated pork pieces in the cornstarch to coat well, then deep-fry in the hot oil for about 1 minute. Remove from the heat and drain on paper towels.</