After considering how to cook with something in her D.C. kitchen that helped her feel connected to those roots, Hellrigl made a simple sourdough starter last fall from that apple, which was ...

it's the ingredient that makes your bread rise. A sourdough starter is made up of fermented flour and water that sort of looks like dough in a jar. There's an old starter that's been around since ...

Sourdough, a fermented variety with only three key ingredients, became a form of culinary currency, with neighbors and friends sharing batches of the essential "starter." In 2020, commercial sales ...