Tomato ketchup proves to be a versatile household item with uses beyond cooking, such as cleaning tarnished copper, treating fabric stains, removing chlorine from hair, polishing leather ...
Blend the skinned tomatoes in a food processor and sieve to remove the seeds. Heat until the tomato pulp has reduced to a thick paste. Use in pasta sauces, casseroles and soups.
This recipe skips the powdered mixes and kits in favor of a homemade sauce that gets its flavor not only from tomato paste, ketchup ... you can substitute with your fruit(s) of choice.