1 flank or sirloin steak (1-1/2 to 2 pounds)
Marinade:
1/4 cup vegetable oil
1/4 cup soy sauce
1 small onion, sliced
2 tablespoons dark corn syrup
1 teaspoon fresh ginger, finely minced
1 garlic clove, finely minced
1/2 teaspoon sesame oil*
1/4 teaspoon pepper
Whisk together all ingredients for marinade.
Place meat in a shallow non-reactive pan or a self-sealing plastic bag; pour marinade over it. Cover and refrigerate for 4 hours or longer, turning meat occasionally.
Prepare outdoor grill with hot coals on one side of grill, or heat one side of gas grill to hot.
Remove meat from marinade; pat dry.
Sear meat over direct heat 5 minutes on each side. Move meat to side of grill not over heat; grill, covered, 20 minutes or until meat thermometer registers 145*F (60*C) for medium-rare. Let stand 10 minutes before slicing on the diagonal.
Serves 6.
*Available in the Asian specialty section of most grocery stores.
To Broil:
Heat broiler. Place meat on greased broiler-pan rack. Broil for about 6 minutes on each side for medium-rare.