1 lb ripe tomatoes, skinned and chopped.
1 medium onion chopped.
Crushe'd garlic (to taste)
1 medium potato finely chopped.
About 1 pint of vegetable stock.
1 tablespoon tomato puree.
2 bay leaves.
S + P to taste.
Here is an easy but very tasty recipe.
Soften the onion in some butter. Add all the other ingredients and bring to the boil. Simmer for about 30 mins. Allow to cool and then liquidise (remove the bay leaves first :-))