Bushmills Single Malt Whiskey 21 year old is aged for a minimum of 19 years in former Oloroso Sherry and Bourbon-seasoned casks, then transferred into Madeira casks for a further 2 years. The result is a whiskey awarded ‘Best Irish Single Malt 2013’. It has huge depth that interweaves dried fruit flavors with spicy, aromatic maltiness and subtle nutty raisin notes.