A shell-shaped cake with one perfect little bump on its back...madeleines are the classic cookie, evoking simplicity and nostalgia and transcending the sprinkle-spattered dessert fads that fade away before the steam has even rolled off your Earl Grey. And yet, this crowd-sourced celebration of the dainty French delight proves that classic doesn't have to mean conventional. These forty reverential recipes developed by Madeleine-lovers from Italy to Oregon break the mold, with unexpected delights from rosemary parmesan polenta to molasses spice to chocolate hazelnut, plus gluten-free and vegan options. Filled with Madeleine-perfecting tips on choosing ingredients, missing and baking batter and picking the right pan, as well as a chapter on glazes, dips and other toppings, the wisdom of dozens of aficionados comes together in this delectable ode to the little cake we love.