To clarify: The title does not refer to a single cookie type. While most of us slide sloppily into interchangeable cookie superlatives, dessert book author Alice Medrich (Pure Dessert; Bittersweet, Chocolate Holidays) recognizes the gentle nuances of cookie aesthetics. Thus, her new cookie cookbook is organized by texture: flaky, gooey, airy, crunchy, crispy, chewy, chunky, and, fittingly last, melt-in-your-mouth. Translated into terms that even cookie monster gluttons can
