Heat gas or charcoal grill. In small bowl, combine all butter ingredients; mix well.
When grill is heated, carefully oil grill rack. Sprinkle each steak with garlic-pepper blend. Place steaks on gas grill over medium heat or on charcoal grill 4 to 6 inches from medium coals. Cook covered 12 to 15 minutes or until of desired doneness, turning once or twice. Serve steaks with blue cheese butter.