Trim fat from steaks. Press pepper onto both sides of each steak. In a large heavy skillet melt butter over medium-high heat. Add steaks; reduce heat to medium. Cook for 10 to 13 minutes for medium-rare (145 degree F) to medium (160degree F) doneness, turning once. Transfer steaks to a serving platter, reserving drippings in skillet. Cover steaks; keep warm.
For sauce, stir onion into reserved drippings in skillet. Cook until onion is tender. Remove from heat. Carefully add beef broth, wine, and marjoram to onion in skillet, scraping up any browned bits from bottom of skillet. Bring to boiling; reduce heat. Boil gently, uncovered, about 2 minutes or until reduced to about 1/4 cup. Serve sauce over steaks. Makes 4 servings.