New hardcover cookbook, "The Perfect Cookie: Your Ultimate Guide to Foolproof Cookies, Brownies & Bars" by America's Test Kitchen.

This comprehensive anthology includes kitchen-tested, never-fail recipes for cookie jar classics, in addition to recipes for rich and chewy brownies, fruit-and-crumble-topped bars, quick no-bake confections, holiday favorites, and even candies like fudge and truffles; they're all included in this gorgeous package, with a full-page photo showing off every recipe. And, as only the test kitchen can, there are tips and tricks throughout the chapters, as well as an introductory section to get you started with insight on everything from what makes a cookie chewy versus crispy to what baking sheet you should buy so that your cookies bake evenly every time. The result? The perfect cookie.