Bill Yosses is a pastry chef and author of The Perfect Finish. From 2007 to 2014, he held the title of Executive Pastry Chef at the White House and was nicknamed "the Crust Master" by President Barack Obama. Afterward, he served as pastry chef at the Four Seasons Restaurant, and, in 2021, he co-hosted Baker’s Dozen, a baking competition show on Hulu. He lives in New York, where he founded Perfect Pie, a pastry company.