Brown steaks in hot oil in a skillet over high heat. Remove from pan.
Add broth, wine, and garlic to skillet; cook mixture over high heat 15 minutes. Return steaks to pan, and cook 5 to 6 minutes on each side or to desired degree of doneness. Remove pan from heat; remove steaks, reserving sauce in pan. Add peppercorns to sauce, and gradually whisk in butter. Serve sauce over steaks.