heres one recipe i found on internet not tryed it yet but will do if you do try recipe let me know what its like
This sauce is really quick and easy to make - you just boil up all the ingredients and then blend them. It is also healthy as the onions are not fried, so it contains no fat.
Ingredients
6 fresh tomatoes, chopped
2 tablespoons of tomato purée
2 medium onions, chopped
4-5 fresh chilli peppers (according to taste), chopped
1 crushed garlic clove
2 tablespoons wine vinegar
1 tablespoon sugar
A pinch of salt if required
Method
Place all the ingredients into a heavy pan and simmer for 15-20 minutes, stirring the mixture continuously. Allow it to cool, then pour it into a food processor and blend until smooth. Return to the pan, and allow to simmer for up to half an hour or until it has reached the preferred consistency.
hope this may help