3/4 c. maple syrup
2 tbsp. soy sauce
1/4 c. vinegar
2 tsp. dry mustard
1 tsp. salt
1/2 tsp. pepper
1 clove garlic, crushed
1 to 1 1/2 lb. flank or London broil

Combine ingredients, pour over meat. Place in Ziploc bag and marinate overnight in refrigerator. Turn frequently.