1. Preheat broiler.
2. Combine cream cheese, blue cheese, yogurt, minced onion and white pepper in a small bowl. Set aside. Rub steaks with garlic. Wash hands.
3. Place steaks on a rack in a broiler pan so the surface of the beef is 2-3 inches from the heat. Broil, turning once, 13-15 minutes for medium-rare to medium (internal temperature 150°F to 160°F). About 1-2 minutes before steaks are done, spoon cheese mixture evenly over steaks.
Broil until cheese is bubbling.