1 large handful basil leaves, roughly chopped
1 tsp dried red chilli flakes
4 garlic cloves, finely chopped
160g/5½oz button mushrooms, halved
4 peppers (mixture of red and yellow), halved, deseeded and roughly chopped
400g tin chopped tomatoes
450g/1lb spaghetti, broken in half
sea salt and freshly ground black pepper
2 tbsp red wine vinegar
3 tbsp tomato purée
30g/1oz Parmesan, freshly grated
150²µ/5½´Ç³ú chorizo, roughly chopped