Chicken pho with sweet and sour berry sambal - Good Natured Berries

Ingredients

• 1.2 litre (2 pints) good chicken stock (ideally homemade, see tip below)
• 1 bunch spring onions, thinly sliced, white and green tops kept separate
• 1 carrot, thinly sliced
• 1-2 Thai birds eye red chillies, halved, deseeded, to taste
• 5cm (2 inch) piece root ginger, peeled, thinly sliced
• 3 garlic cloves, thinly sliced
• 2 small fresh or dried kaffir lime leaves
• 2 teaspoons Thai fish sauce (nam pla)
• 1 tablespoon ketjap manis or soy sauce
• 500g (1lb 2oz) boneless, skinless chicken breasts
• 200g pack choi sum, leaves shredded, stems cut into bite sized pieces
• 300g pack chilled cooked rice noodles
• 100g (4oz) bean sprouts, rinsed, drained
• Handful coriander leaves, roughly torn
• 225g (8oz) strawberries, sliced
• 175g (6oz) raspberries
• 100g (4oz) caster sugar
• 2 tablespoons rice vinegar
• 2-3 Thai birds eye red chillies, roughly chopped with seeds
• 2cm (¾ inch) piece root ginger, peeled, finely chopped
• 1 small onion, finely chopped