It’s not sauce and it’s not ketchup, but it is a cousin of these tomato preserves. Rather, it’s jammy and spicy with all the joy of a slightly sweet, thick condiment.
Tomato jam can be used for almost anything and you can make it when tomatoes are plentiful and cheap and you'd prefer an interesting alternative to a standard tomato sauce.
Check out one of The Minimalist videos about tomato jam.
by Mark Bittman of The Minimalist