Basic Tomato and Basil Sauce

ingredients
· 3 tbsp extra virgin olive oil
· 1 large onion, chopped
· 2 garlic cloves, crushed
· 3 (400g) tins of chopped tomatoes
· ½ teaspoon crushed chilli flakes
· 2 teaspoons balsamic vinegar
· 2 teaspoons caster sugar
· Bunch of basil leaves, torn into small pieces
· Salt and freshly ground black pepper to taste
· Grated Parmesan cheese, to serve
preparation method
1. Heat the oil in a saucepan and gently cook the onion and garlic until softened.
2. Stir in the tomatoes, chilli flakes, balsamic vinegar and sugar.
3. Bring to a simmer and cook slowly for 45 minutes to 1 hour.
4. Stir in the basil and season with salt and pepper. This can be left chunky or blended in a food processor for a smooth sauce.
5. Serve spooned over cooked pasta with plenty of Parmesan cheese.