Mustard-Molasses Flank Steak

Directions

1. 1
   Combine first 7 ingredients in a large zip-top plastic bag; seal. Marinate in refrigerator 30 minutes.
2. 2
   Preheat broiler.
3. 3
   Remove steak from bag, reserving marinade.
4. 4
   Place steak on a broiler pan coated with cooking spray; broil 5 minutes on each side or until desired degree of doneness.
5. 5
   Remove steak from oven; loosely cover with foil.
6. 6
   While steak broils, place reserved marinade in a small nonstick skillet. Bring to a boil; cook until reduced to 1/3 cup (about 6 minutes), stirring occasionally.
7. 7
   Cut steak diagonally across the grain into 1/4-inch-thick slices.
8. 8
   Drizzle mustard-molasses sauce over steak. Top with onions, if desired.