Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1                    flank steak
   2      cloves        garlic crushed
   2 1/2  tablespoons   vinegar
     1/4  cup           honey
   1 1/2  teaspoons     ginger
     3/4  cup           vegetable oil

Preparation:

Combine all and marinate overnight. Or freeze in Ziploc bag and refrigerate the night before cooking. Grill as usual. Source: Kansas City Barbeque Society