Cracker Jack是玉米花混合花生裹上糖衣后而具浓厚糖蜜风味的一种零食，目前为美国百事食品公司旗下的产品与商标，它最著名的特色是包装内附了一个玩具。华文地区里有人照crackerjack原意译成好家伙玉米花，或者按照其淡褐色外观译成琥珀玉米花，但目前尚未出现官方中文名称。

时常有人念错该商品名称，例如美国棒球迷的流行歌曲《带我去看棒球赛》的歌词：「Buy me some peanuts and Cracker Jacks...」（买些花生和玉米花给我）中的Cracker Jack画蛇添足地加了s，在原始版本的歌词就出现这种错误。

Cracker Jack is an American brand of snack consisting of molasses-flavored caramel-coated popcorn and peanuts, well known for being packaged with a prize of trivial value inside. The Cracker Jack name was registered in 1896. The slogan "The More You Eat The More You Want" was also registered that year. Some food historians consider it the first junk food. Cracker Jack is famous for its connection to baseball lore. The Cracker Jack brand has been owned and marketed by Frito-Lay since 1997. Frito Lay has announced that the prize is going to be removed and replaced with a QR code which can be used to download a baseball game.