It’s a recipe for disaster when bookbinder Brooklyn Wainwright is asked to restore an antique cookbook….   Brooklyn has always been a little obsessed with food, but it was her sister Savannah who became a chef, graduating from the prestigious Cordon Bleu school in Paris. She and her classmates all went on to successful careers, but none of them achieved culinary superstardom like Savannah’s ex-boyfriend Baxter Cromwell.   When Baxter invites the old gang to participate in his new restaurant’s gala opening in San Francisco, Savannah looks forward to seeing her friends, and even asks Brooklyn to restore a tattered cookbook—an old gift from Baxter—as a present for him. But Brooklyn immediately recognizes that the book, which has strange notes and symbols scrawled in the margins, is at least two hundred years old.