Stir the flour, salt and pepper together in a small cup and spread the mixture out on a large plate. Dip the lamb chops in the flour mixture on both sides. Shake off any excess.
Heat the oil in a large skillet and saute the chops over medium-high heat according to taste. Transfer them to a serving platter and keep warm. Pour the Madeira, stock and rosemary into the skillet and bring to a boil, scraping up all the cooked juices from the bottom. Remove the skillet from the heat, pour the sauce over the lamb chops, and serve immediately.
Recipe courtesy of B. Smith, B. Smith's Entertaining and Cooking For Friends, Artisan, 1995