- Combine hoi sin sauce, soy sauce, wine, honey, sugar, garlic, colouring (if using) and spice powder in a shallow bowl. Whisk well to combine. Pour half of the sauce into a jug and reserve for later. Add the pork into the bowl with the remaining sauce. Rotate to cover completely and marinate in the refrigerator for 1-3 hours or cover and refrigerate overnight for best results.
- After marinating, preheat oven to grill / broil settings on medium heat (176°C). Drain pork and discard the marinade. Line a baking pan with baking/parchment paper or aluminium foil. Place pork onto pan and grill/broil for 30 minutes on one side, basting two or three times with the reserved marinade. Rotate with tongs and baste again with the marinade twice again while grilling/broiling.
- Remove from oven and allow to cool.
- If you like additional glaze, combine all the (extra) glaze ingredients into a small saucepan. Bring to boil; reduce heat and allow to simmer for about 5-8 minutes until the sauce has thickened (keep your eye on it as it can burn easily if the heat is too high). Remove from heat and allow to cool slightly.
- Cut pork into thick slices to serve. Serve over steamed rice and/or vegetables with extra glaze.