Nose: Raisin, mixed spices (cinnamon & nutmeg), orange zest, espresso, black pepper.
Palate: Smoky musk with a spicy zing, butterscotch, clean mouth feel.
Finish: Hints of chocolate and rum with lingering heat and sugar on finish.
Overall: The nicest off-the-shelf offering from Glenfiddich, aged in Carribbean rum casks providing a unique flavouring. The rum casking complements the smoke without overpowering it. A good choice for those days when you need drams that are a bit more unique yet still familiar.
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this is a nice treat, but i feel that the 15 is a better value and has a more accessible flavor than the 21.