The Sourdough Sidekick was codeveloped with King Arthur Baking Company. Baking sourdough bread is inherently old-fashioned, relying on natural fermentation and wild yeast instead of the simple, predictable commercial stuff. So it might sound anathema to bring a gadget into the mix. The trick to the Sourdough Sidekick - backed and branded by King Arthur flour - is that it promises to automate the boring bit of sourdough baking: starter management. It feeds your starter flour and water on a set