Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  cup           sherry
   1      tablespoon    soy sauce
   1 1/2  teaspoons     wine vinegar
   1 1/2  teaspoons     catsup
   1 1/2  teaspoons     honey
   1      dashes        garlic powder
   1      pound         boneless sirloin steak -- cut into 1-inch
                        -- cubes

Preparation:

Combine first 6 ingredients in a large shallow dish. Add steak; cover and marinate at least 2 hours in refrigerator, turning occasionally. Drain steak, reserving marinade. Thread steak on 7-inch skewers. Grill 5 minutes on each side over medium coals or until desired degree of doneness, basting with marinade.