Fortified cask wine is a type of wine that has been enhanced with a distilled spirit—typically brandy—and packaged in a bag-in-box (cask) format, offering both extended shelf life and convenience. Popular in countries like Australia, fortified cask wines are often sweet and rich, similar in style to Port or Muscat, and are commonly enjoyed as an affordable, everyday dessert or after-dinner wine.

These wines tend to be full-bodied with flavors of raisins, caramel, dried fruit, spice, and toffee, and can be served chilled or at room temperature. While cask wine is generally associated with budget-friendly options, fortified versions maintain a higher alcohol content (usually 15–18%) and benefit from the oxidative stability that the cask packaging provides. Ideal for casual sipping, cooking, or entertaining, fortified cask wine combines traditional winemaking techniques with modern practicality.