Bistro Steak

Heat a large sauté pan over high heat. Season steaks with salt and pepper. When pan is very hot add steaks. Sear 2 to 3 minutes depending on desired doneness. Turn steak (to sear other side. See note).

Transfer steaks to serving plates. Return skillet to heat, add shallots to hot pan; reduce heat to low. Stir, scraping any brown bits from pan (about 1 minute). Add vinegar to skillet, bring to a low boil and cook, reducing by half.

Remove pan from heat, stirring in butter to melt. Pour over steaks; serve immediately.