Ingredients
Method
Prepare the vegetables
- Peel and chop the onion and garlic, and chop the other vegetables into small pieces.
Cook the vegetables
- Heat a drizzle of oil in a large pan and gently cook the onion, garlic, celery, leek and carrots for 10-15 minutes until they have softened.
- Add the peppers to your pan and cook for another 10 minutes or so.
- Add the tins of tomatoes, sugar and vinegar. Give everything a stir, cover and leave to simmer for at least 20 minutes.
- Once it's ready, remove from the heat and use a hand/stick blender to puree the sauce until it is smooth.
