Rack of Lamb with Mustard Sauce

Preheat oven to 425 degrees. Season lamb with salt and pepper. Heat oil over high heat in a large ovenproof skillet and sear lamb, fat side down, until dark brown, about 6 minutes.

Remove lamb from skillet, and discard fat. Return lamb, seared side up, to pan, and roast in oven until a thermometer inserted in center reaches 130 degrees, 15 to 17 minutes. Let lamb rest on a cutting board, loosely tented with foil.

Pour out excess fat from skillet, and place over medium-high heat. Add wine, and simmer, stirring and scraping up browned bits, until reduced by two-thirds, about 2 minutes. Whisk in stock, mustard, and molasses, and simmer until thickened, about 8 minutes. Carve lamb into individual chops, and serve with sauce.