Steak with Mustard Sauce

Preheat large, heavy-duty skillet over medium-high heat for 3 minutes. Season steaks with salt and pepper. Add oil to skillet and when hot, but not quite smoking, add steaks to pan. Cook for 5 minutes; turn and cook until desired doneness is reached, about 5 more minutes for medium-rare depending on thickness. Transfer to a plate and hold warm. Add shallots to skillet and sauté until soft and golden, about 4 minutes. Stir in beef broth and simmer until reduced by half. Stir in cream and mustard. Bring to a simmer and season if necessary. Serve immediately over steaks.