The couple had stumbled into a thrift store and, amid the trinkets and wool sweaters, McCallum, 24, found a shelf of books with covers depicting young women wearing bonnets. They were all Amish ...

Author and interviewee Saloma Furlong, who started a small baking business in her early 20s, publishes the recipe — and others — on her website (and in her book, Bonnet Strongs: An Amish ...