Glendronach Allardice 18yo (named after the distillery's founder) has been 100% matured in oloroso sherry casks. It has been at the centre of the distillery's range since its 2000's relaunch and remains one of the best sherry-focused 18-year-old whiskies on the market. Chewy and fruity, with layers of soft spice, and rich raisins and dates.