The new 2018 edition of Laphroaig 25 Years was matured in ex-bourbon casks (earlier versions often had some sherry influence).

The last one I tried was the 2014 edition and that was rather excellent.

Laphroaig 25 yo Cask Strength (52%, OB 2018)

Nose: rather mineral start, pretty punchy for such an old malt. Sunflower oil, ashy notes and carbon paper. Underneath there is a nice layer of grapefruits, lime and grilled pineapple – almost tropical. Also a buttery touch. Top notes of eucalyptus and sea spray. Burnt orange peel. Mouth: very big, with minty smoke and medicinal notes....