
Speyside single malt Scotch is a single malt from one Speyside distillery, made from malted barley.
Any unpeated single malt
From the Highlands, elsewhere in Scotland or beyond. Use in the same amount.
A non-smoky one works in the same amount and gives a slightly lighter cocktail.
Peated Islay single malt
The smoke takes over, so use one only if you want a smoky cocktail. For just a hint of smoke, use it for a quarter of the measure.