De Kuyper Sour Apple is a bright green liqueur from the Netherlands, made by De Kuyper Royal Distillers. It features a crisp, tart apple flavor balanced by a sweet finish, delivering a bold and fruity taste. Often used in cocktails like the Appletini or Sour Apple Shot, it adds a vibrant color and zesty bite. The texture is smooth, with a refreshing sour-sweet profile.