Imperial stouts are a strong, dark beer style known for their rich flavors and high alcohol content, typically ranging from 8% to 12% ABV. They originated in England and were originally brewed for export to Russia, particularly for the Imperial Court. These stouts are characterized by their deep, roasted malt flavors, often featuring notes of chocolate, coffee, and dark fruits. The brewing process usually involves a higher amount of malt and sometimes additional ingredients like vanilla or spices to enhance complexity.