Macaroni and Cheese

You might imagine that this dish was a modern creation, but its history dates back to the 1700s, when dried macaroni—one of the few staples that could survive a year aboard ship—was brought from Italy to Britain and to the American colonies. Because there was a lack of other (Italian) ingredients, the imported pasta would often be served with a simple white sauce—milk thickened with flour and butter; sometimes it was baked in a casserole with bread crumbs on top. The earliest recorded recipe was in the Boston Cooking School Cookbook in 1896. This recipe uses a classic variation of béchamel known as sauce Mornay, made by whisking the flour into sautéed onions to form the roux (which is what thickens the sauce; see page 62 for more); then milk is added and the sauce is left to simmer until thick and creamy. Grated cheese is the final touch. Béchamel—and any sauce where flour is used as a thickener—is typically cooked for about 30 minutes to give the starch molecules in the flour enough time to absorb as much liquid as possible (so the flour goes from being granular to smooth, or gelatinized). In this recipe, the sauce is simmered for a much shorter time, since it will continue to cook in the oven after being stirred into the dish. For variety, top some or all of the servings with thin slices of roasted tomato and fresh thyme.