It's Tomato... (need to practice my english, making this kind of mistakes makes me mad...)
It's just like any other jam, ingredients are tomatoes, sugar, and one lemon sliced in half(it releases the citric acid during boiling which increases conservation)
It is really good on toasts and tastes like jam, with tomato flavour.
This weekend I'm baking an apple cake and then filling it with tomato jam! Let experimenting begin!