Glenmorangie Extremely Rare 18 Years Old Single Malt Whisky – Highlands, Scotland ? A single malt Scotch whisky of serious distinction. After fifteen years maturing in American white oak casks approximately 30% is transferred into Spanish Oloroso casks to spend a further three years maturing.?When both elements have reached 18 years, they are blended back together to create a whisky with a rich bouquet and full, rounded flavour. Flavours of honey, malt and flowery scents with a hint of dates and figs and wood smoke. A long finish with the sweetness of dried fruit and subtle dryness of Oloroso nuttiness.