25g/1oz piece fresh root ginger, peeled and finely grated
1 onion, cut into wedges
1 red pepper, deseeded and chopped
1 green pepper, deseeded and chopped
½ small pineapple
4 spring onions, trimmed and thinly diagonally sliced
1 pinch dried chilli flakes
3 tbsp tomato ketchup
freshly ground black pepper
2 tbsp soft light brown sugar
2 garlic cloves, crushed
1 tbsp cornflour
1 tbsp dark soy sauce
2 tbsp sunflower oil
2 tbsp white wine vinegar
2 boneless, skinless chicken breasts
300ml/10fl oz fresh pineapple juice