The classics ― literary and culinary ― have much to offer if you don't take them too seriously. Case in point: macaroons. Made traditionally, they always strike me as overly complicated. All you need are three ingredients ― nuts, sugar, and eggs. But the nuts don't have to be almonds, and the egg whites don't have to be whipped. Try shelled salted pistachios, which have a unique, subtle peachy fragrance. Just pop them into a food processor with sugar and an egg, then bake; in a few minutes, a new, chewy cookie classic is yours to savor.