Marinated Flank Steak

6 scallions, thinly sliced (white and pale green parts only)
1 garlic clove, chopped
1/3 cup soy sauce
2 tbsp lime juice
1.5 tbsp olive oil
1 tbsp (packed) brown sugar
1/8 tsp red pepper flakes
2 lb flank steak
salt

1. Combine first 7 ingredients in a large resealable plastic bag and mix well. Add steak; seal bag, pressing out excess air. Turn steak to coat. Refrigerate overnight, turning bag occasionally.

2. Heat grill to high. Remove steak from bag; wipe off excess marinade. Season both sides with salt. Grill steak until well-browned, about 6 minutes per side for medium-rare. Transfer to a cutting board and allow to rest for 10 minutes. Slice thinly against the grain.

Serves 4-6.