1 medium sized onion finely chopped
1 dessertspoon sunflower oil
1 pepper, any colour chopped
1 tin plum peeled tomatoes chopped or whole
2 tablespoons tomato puree
1 teaspoon red wine vinegar
25g of butter
1 tablespoon fresh parsley or basil
Gently cook the onion and pepper in a saucepan until soft.
Add all the other ingredients and cook for 15 minutes.
This sauce is particularly good with meatballs, a pizza topping and pasta. If using whole tinned tomatoes remove the lid then take a pair of scissors and chop them in the tin.