Carefully trim away all visible fat. Combine garlic and olive oil. Pour over steaks and marinate, refrigerated, over night. Season steaks with salt and freshly ground pepper. Broil or grill 5 7 minutes per side or until meat has only a hint of pink. For the sauce: in small sauce pan, melt butter and stir in remaining ingredients. Heat to boiling, stirring occasionally. Place the steaks on warmed plates and pour the sauce over them