In a 30cm frying pan, heat 2 tbsp butter on medium-high. Season 4 (85g) boneless pork loin chops with ¾ tsp five-spice powder and ¼ tsp salt. Cook pork for 5 minutes or until browned, turning once; transfer to plate. Add 5 sliced plums to frying pan; cook, stirring, for 3 minutes. Stir in 1 crushed garlic clove, then ¼ cup seasoned rice vinegar, 2 tbsp soya sauce and 1 tbsp brown sugar; cook, stirring, until simmering. Return pork to frying pan; cook for 1 minute or until cooked through. Stir in 3 spring onions, cut into 2,5cm pieces.