Portugese dessert wines, particularly the iconic Madeira, are renowned for their extensive aging potential. Characterized by their rich, caramelized flavors, they often offer notes of toffee, nuts, and dried fruits, with a refreshing acidity that balances the sweetness. Common grape varieties include Malvasia and Bual. The island of Madeira is a key region, where unique production methods, including “estufagem,” enhance complexity. Other notable dessert wines come from the Douro Valley, producing luscious late-harvest wines with deep berry and floral aromas.