For the marinade: Whisk together all the marinade ingredients in a large baking dish. Add the ribs and turn to coat. Cover and refrigerate for at least 1 hour or overnight; it is best if marinated overnight.
For serving: Heat grill to high. Remove short ribs from marinade and grill short ribs until slightly charred and tender and cooked to desired degree of doneness. Serve short ribs with white rice and kimchee.