Across the spectrum of spirits, no feature is more important than flavor. That’s especially true for liqueurs that are most often consumed in shot form, with no embellishment or mixer. Generational tastes being changeable, the most popular liqueurs have shifted over the years. For drinkers in the 1980s, sugary-sweet peach schnapps was all the rage. At the turn of the millennium, the herbaceous complexity of Jägermeister reigned. And as millennials came of age in the aughts and 2010s, cinna...
