Baron or Pair of Hind-quarters of Mutton

Baron d’agneau rôti teaches command of a large roast. The saddle remains joined to both legs, so the one true thing to know before touching the oven is this: shape governs cooking. Clear away superfluous fat, shorten the flanks until they just meet over the fillets, and bind the joint with five or six firm turns of string. A loose baron spreads, cooks unevenly, and loses its magnificent line on the platter.

The original entry assumes a butcher to shape the joint, a roast cook to tend it, a vegetable cook to prepare one of many garnishes, and enough diners to meet a festival portion. It explicitly prefers vegetables to a sauced garnish, so the saucier, the stock never off the fire, and the salamander stay out. For four, order the smallest true baron from a young lamb, use a domestic oven in place of the roasting station, and choose the entry’s simple potatoes, peas, and broad beans instead of its long catalogue of compound garnishes. That catalogue is brigade scaffolding. Trimming, trussing, roasting whole, and presenting the vegetables around the joint are the dish itself. One cook, one stove, one evening.

The finished baron should arrive deep bronze, with rosy saddle meat, succulent legs, crisp-edged potatoes, and green vegetables shining with real butter. If the saddle reaches its temperature while the legs still lag, cover only the saddle and keep roasting. Ça se rattrape. Give the trimming and those five or six ties your full attention, because that is the step that decides the dish.