Whisk all of the marinade ingredients in a medium bowl.
Place the pork chops in a large, resealable plastic bag and pour in the marinade.
Press the air out of the bag and seal it tightly. Turn the bag several times to distribute the marinade, and refrigerate for 2 to 4 hours.
Prepare the barbecue for direct cooking over medium heat (180° to 230°C).
Remove the chops from the bag and discard the marinade. Barbecue the chops over direct medium heat, with the lid closed, for 4 to 5 minutes on each side, or until no longer pink in the centre.
Remove the chops from the bag and discard the marinade. Barbecue the chops over medium heat, with the lid closed, for 4 to 5 minutes on each side, or until no longer pink in the centre.
