
McDonnell at his home in Salt Lake City. — ©️2024 The New York Times Company
THE idea came to Dylan McDonnell early in the pandemic, when a sourdough-baking craze took over a nation under lockdown.
McDonnell, an amateur brewer who lives outside Salt Lake City, Utah, saw Seamus Blackley, a video game designer, boasting on social media about baking bread with 4,500-year-old Egyptian yeast.
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