A Teochew delicacy, these croquettes are filled with bits of Char Siew (Barbecued Pork). You may be able to pick up some Char Siew from a Chinese store or the market.
First prepare the Char Siew by mixing the pork with all the ingredients and setting aside to marinate for 1 hour. Then drain the meat and roast on a wire rack over a roasting pan in a preheated oven at 200°C (400°F) for 30 minutes