Balsamic Marinated Flank Steak-Low Carb - cooking recipe

Ingredients

1 1/2 lbs flank steaks
1/3 cup finely chopped onion
1 garlic clove, minced
3 tablespoons balsamic vinegar, divided
2 teaspoons olive oil
1/2 teaspoon pepper
1/4 teaspoon salt

Preparation

Cut across flank steak in criss-cross pattern, cutting 1/8\" deep.
Place in shallow glass baking dish. In small bowl, stir together onion, garlic, 2 T vinegar, oil, salt & pepper.
Pour over steak, turning to evenly coat both sides Cover and refrigerate at least 4 hours or overnight Heat grill Remove& discard excess marinade from steak Sprinkle both sides with . Place on grill over medium heat
Cook 9-12 minutes or until internal temperature reaches 140 for medium-rare, turning once.
Place on cutting board & let stand 5 minutes
Cut on diagonal into thin slices.
Pour accumulated juices over slices; drizzle with remaining 1 T vinegar.