Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   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      t             Turmeric
   1      t             Dried oregano
   1      t             Coursely ground pepper
   2      Large         garlic clove
   4      lb            Flank steak

Preparation:

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.