BARBECUED LONDON BROIL

1 1/2 or 2 lb. flank steak
1 T. sherry or any dry red wine
1 T. soy sauce
2 T. sugar
1/2 tsp. salt
1/4 tsp. cinnamon

Score meat on all sides. Mix together remaining ingredients. Put on meat and let stand 1 1/2 to 2 hours, then place meat in broiler pan about 4 inches from heat. Broil about 10 minutes or a little longer on each side. Ten minutes is for medium rare. To serve, cut diagonally across the grain into very thin slices.