1 Medium onion

1/2 c Olive oils

5 tb Lemon juice

2 tb Soy sauce

2 tb Minced fresh parsley

5 1/2 tb Minced fresh ginger

1 tb Ground cumin

1 tb Chili powder

2 ts Sherry

1 ts Turmeric

1 ts Dried oregano

1 ts Coursely ground pepper

2 Large garlic clove

4 lb Flank steak

Mix frist 13 ingredients in large bowl. Divide marinade mixture between 2 large shallow baking dishes. Add steaks to marinade, turning to coat. Cover and refrigerate overnight. Grill steaks to desired degree of doneness, about 8 minutes on each side. Heat marinade in saucepan. Cut steaks diaganally into thin slices. Pour some marinade over . Garnish with cilantro and serve.