Single malt Scotch whisky aged 12 years; first 9 years in first-fill ex-bourbon American white oak barrels, then split maturation with one portion remaining in ex-bourbon and the other transferred to 30-year-old Matusalem Oloroso sherry butts for 3 years before reuniting; bottled at 40% ABV; chill-filtered with E150a caramel coloring.