Sourdough: Recipes for Rustic Fermented Breads, Sweets, Savories, and More, authored by Sarah Owens, is a cookbook that goes beyond bread and explores the versatility of sourdough fermentation. This book features a wide range of recipes, including rustic breads, pastries, cakes, and even savory dishes. It provides guidance on creating and maintaining a sourdough starter, as well as tips for incorporating sourdough into various culinary creations. With its diverse collection of recipes, Sourdough offers something for every sourdough enthusiast.