Ingredients:
- 1 large onion, diced
- 2 carrots, chopped
- 3 celery stalks, chopped
- 2 garlic cloves, minced
- 1.2 liters vegetable broth
- 900g ripe tomatoes, chopped
- 1 (400g) can crushed tomatoes
- 500g tomato puree
- 1 red bell pepper, seeded and chopped
- 1 tablespoon tomato paste
- 1/2 bunch fresh basil, plus extra for garnish