Ingedients
1/4 c balsamic vinaigrette dressing
3 tbsp A1 sauce, divided
2 tbsp brown sugar
2 cloves garlic, minced
1 boneless beef sirloin steak (1 lb)
1 tbsp EVOO
1 large onion, sliced
Mix dressing, steak sauce, sugar and garlic until well blended. Pour over steak in shallow dish; turn to coat on both sides. Refrigerate 1 hour to marinate.
Heat oil in large skillet over medium-high heat. Add onions; cook and stir 5 minutes. Cover, cook on medium-low heat 15 minutes or until onions are golden brown, stirring occasionally.
Meanwhile, heat broiler. Remove steak from marinade; discard marinade. Place steak on rack of broiler pan. Broil, 4 inches from heat, 8 minutes on each side or until done. Remove from heat; cover. Let stand 5 minutes before cutting across grain into thin slices. Stir remaining steak sauce into onions. Serve with meat.
