Character & context
Understanding Herbal Liqueurs & Amaro
Herbal liqueurs use botanical ingredients to create layered aromas on a sweetened spirit base. Chartreuse is a celebrated example of a complex botanical recipe. Italian amaro brings another direction, with bitterness playing a larger role. This is a broad shelf, so look at the named style and producer: a sweet herbal liqueur, bitter digestif and concentrated cocktail bitters serve different purposes.
Further reading: Chartreuse — the liqueur's history · WSET — spirits, bitters and liqueur styles
Read related observations