3 red onions, sliced
salad leaves, torn into small pieces
4 tomatoes, sliced (optional)
2 tbsp Chinese black rice vinegar or balsamic vinegar
1 tbsp Chinese black rice vinegar or balsamic vinegar
1 tbsp brown sugar
2 tbsp clear honey
2 tbsp groundnut oil
1 tbsp groundnut oil
pinch salt
2 tbsp light soy sauce
pinch ground white pepper
600g/1lb 5oz pork fillet, sliced
8 large sesame seed burger buns, halved, grilled