½ cup soy sauce
2 tablespoons brown sugar
2 tablespoons lemon juice
2 tablespoons olive oil
2 cloves garlic, minced
1 tablespoon minced onion
1 teaspoon ground ginger
½ teaspoon black pepper
1 (1 1/2-pound) beef flank steak
In a shallow bowl, combine soy sauce, brown sugar, lemon juice, olive oil, garlic, onion, ginger and pepper. Coat steak with marinade, cover, and refrigerate for at least 6 hours.
Preheat an outdoor grill for high heat, and lightly oil grate.
Grill steak for 7 to 8 minutes per side, or to desired doneness.