Typically softer and sweeter due to the introduction of sloe berries, which are steeped in gin for a number of months to produce a more muted, fruitier flavor, sloe gin is a traditional spirit from the British Isles that resembles a liqueur and is typical of a lower alcohol concentration than a classic gin. Perfect as a seasonal treat or to be enjoyed by those with a penchant for sweeter spirits, no gin collection is complete without a bottle of sloe.