"There are many reasons to bake: to feed; to create; to impress; to nourish; to define ourselves; and, sometimes, it has to be said, to perfect. But often we bake to fill a hunger that would be better filled by a simple gesture from a dear one. We bake to love and be loved. In 1966, Kathleen Eaden, cookbook writer and wife of a supermarket magnate, published The Art of Baking, her guide to nurturing a family by creating the most exquisite pastries,...