Method

1. Heat the oil in a pan
2. Sauté the tomato and onion for two minutes, to soften
3. Add the chilli flakes and coriander and stir well
4. Pour in the red wine, vinegar, ketchup and water and bring to the boil
5. Reduce the heat and simmer gently for 8 to 10 minutes, adding any extra water if necessary
6. Cover and store in the fridge. Use within three days