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?
When life gives you more fresh herring than you can eat, you pickle them! This style of pickle is a Swedish one called glassblower's herring (no idea why). No fresh herring? You can make this with salted herring, too.