Soak bamboo skewers in warm water for at least 10 minutes. (You can do this the day/night before and leave the skewers in the water.)
Trim any fat or sinew from the pork fillet/tenderloin then slice into 5-7cm medallions.
Combine all the remaining ingredients then pour over the pork. Cover and allow to marinate for 10 minutes in the fridge.
When the pork has marinated, remove from the marinade and skewer 2 pieces of pork onto each skewer.
Microwave the remaining marinade for 1-2 minutes until bubbling.
Heat a griddle pan over high heat then grill the pork skewers until golden brown on both sides. Brush with the heated marinade. The pork is cooked when the juices run clear when cut.
Remove the pork and allow to rest for 5 minutes before serving.