Marinated Grilled Flank Steak

1 Flank Steak

¾ cup pineapple juice

¾ cup ketchup

¾ cup sugar

¾ cup garlic red wine vinegar

¾ cup water

2 Tbs. corn starch

Mix together juice, ketchup, sugar, vinegar and water. Immerse steak and refrigerate 12 to 24 hours, covered.

Grill, basting frequently, 20-25 minutes. Take 2 cups marinade and 2 Tbs. cornstarch. Put in an ovenproof dish on side of grill. Stir until thickened. Slice steak on the cross grain, serving with thickened marinade.