Christina remixes an old classic into the marbled chocolate s'more cookie, takes us on a flavor journey with blueberry-and-corn bars, and introduces us to a new favorite with the jelly-donut cookie sandwich.

And all that creativity is meant to rub off: Through dozens of recipes, she shows you how to mix and match ideas, flavors, and textures to turn you into a cookie wizard. Whether you’re swapping out peanut butter for marshmallow fluff or adding Milk Bar’s famous Birthday Crumbs to a recipe, this cookbook will reimagine the cookie game for new bakers and pros alike. All About Cookieswill have you rushing to preheat your oven and push your culinary boundaries to the next level.