1 medium onion, thinly sliced
1/2 cup Lemon Juice from Concentrate
1/2 cup vegetable oil
2 tablespoons dry sherry
2 teaspoons Beef-Flavor Instant Bouillon
2 teaspoons chili powder
2 teaspoons ground cumin
2 cloves garlic, finely chopped
1 (1- to 1 1/2-pound) beef flank steak, scored
In shallow dish or plastic bag, combine all ingredients except meat; add meat.
Cover; marinate in refrigerator 6 hours or overnight.
Remove meat from marinade; grill or broil as desired, basting frequently with marinade.