1 flank steak
1/3 cup soy sauce
3 Tbsp Worcestershire sauce
1 Tbsp balsamic vinegar
2 Tbsp olive oil
4 garlic cloves, minced
1 tsp sugar
fresh ground pepper, to taste
Combine ingredients and marinate for 1 to 6 hours in the refrigerator.
Cook the steak on a grill pan under the broiler for 7-8 minutes per side for medium. Let rest 5-7 minutes before thinly slicing against the grain.