Why? Because you can! And pickle, and jam, or otherwise celebrate the resurgence of the domestic arts our forebears held so dear. Put on your best apron and step into our kitchen, won't you?
There are many reasons to make your own ketchup. The bottled stuff (even the most top-shelf variety) has an indeterminate amount of sugar and “natural flavorings” — what does “natural” taste like, anyway?