Which liqueur is made by infusing gin with sloe berries?

The liqueur made by infusing gin with sloe berries is sloe gin.

Sloe gin is a deep red British liqueur made with gin, sloes, and sugar. Sloes are the small, dark fruits of the blackthorn shrub, Prunus spinosa, a relative of the plum. They are intensely tart when eaten raw, but alcohol extracts their fruit, color, and aromatic compounds while sugar softens the sharpness.

Traditional recipes call for ripe sloes to be steeped in gin for several months. The fruit is often picked in late autumn, sometimes after the first frost, which softens the berries. The finished drink is usually sweeter and lower in alcohol than ordinary gin, with European regulations historically setting 25% ABV as the minimum for products labeled sloe gin.

Sloe gin is often confused with flavored gin or with a spirit made from ordinary sweet berries, but its defining ingredient is the sloe. It is also different from gin itself: gin is a distilled spirit flavored primarily with juniper, while sloe gin is a fruit-based liqueur made by infusing or flavoring a gin-based spirit. It is enjoyed neat, over ice, or in cocktails such as a Sloe Gin Fizz.