4 red chillies, chopped
4 garlic cloves, peeled
7cm/3in piece fresh ginger, peeled, chopped
1 x 400g/14oz can plum tomatoes
400g/14oz fresh tomatoes, chopped
375g/13oz soft light brown sugar
1 tsp cardamom pods, lightly crushed
3 tbsp fish sauce (nam pla)
70²µ/2½´Ç³ú raisins
120ml/4fl oz red wine vinegar