Applejack refers to a A distilled cider of strongly charactered apple varieties, such as Granny Smith and Golden Delicious. Applejack is similat to Calvados and is the American version of Apple Brandy. Moreover, Applejack is a strong American Apple Brandy distilled from apple cider. It ranges from 80 to 100 proof and is aged in wooden casks for a minimum of two (2) years before being bottled.