Cookies are a type of food featured in The Last Stand: Union City.
Chocolate chip cookies.
Cookies are nearly as old as the art of baking itself, but didn't really take off until sugar was added to the mix. There were dozens of variations available to the average person before the apocalypse, though the citizens of Union City highly favored chocolate chip cookies. They'll provide a quick boost of energy to a survivor, and tickle their taste buds too.
It restores 8% Food, a fairly decent amount in the beginning of the game for its light weight. It appears as a light purple and blue bag when dropped by zombies, and can be found in stores throughout Union City.