Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      medium        onion
     1/2  cup           olive oils
   5      tablespoons   lemon juice
   2      tablespoons   soy sauce
   2      tablespoons   minced fresh parsley
   5 1/2  tablespoons   minced fresh ginger
   1      tablespoon    ground cumin
   1      tablespoon    chili powder
   2      teaspoons     sherry
   1      teaspoon      turmeric
   1      teaspoon      dried oregano
   1      teaspoon      coarsely ground pepper
   2      large         garlic clove
   4      pounds        flank steak

Preparation:

Mix first 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 diagonally into thin slices. Pour some marinade over. Garnish with cilantro and serve.