Glenfiddich 15 Year is a single malt Scotch whisky that undergoes a unique maturation process called Solera. This involves a marrying of whiskies aged in a combination of sherry, bourbon, and new oak casks. The result is a rich and complex whisky with notes of dried fruit, honey, and a subtle spiciness. Glenfiddich 15 Year is characterized by its depth and smoothness, making it a favorite among those who appreciate well-balanced and matured single malts.