Honey and ginger stir fry

600g pork fillets, cut into 5mm slices

60 ml vegetable oil

2 spring onions, trimmed and cut into 10cm lengths

1 tbsp malt vinegar

1 tbsp light soy sauce

1 tbsp water

2 limes, halved

2 tbsp honey

2 tbsp light soy sauce

2 tbsp shao hsing wine or dry sherry

2 tbsp finely diced ginger

1 tbsp oyster sauce

2 tsp dark soy sauce

2 tsp five spice powder

½ tsp sesame oil