Pour half over wings in shallow dish; turn to evenly coat wings. Refrigerate 1 hour to marinate.
Heat oven to 375F.
Remove wings from marinade; discard marinade.
Place wings in single layer on rimmed baking sheet sprayed with cooking spray.
Bake 40 to 45 min. or until done, draining after 20 min. About 5 min. before wings are done, cook remaining ketchup mixture in saucepan on medium heat 5 min. or until heated through.