Umeshu is a Japanese liqueur made by macerating sugar and ume plums (Prunus mume) in alcohol. It is usually made with rock sugar and ripe or green ume plums, while the base is generally made with shōchū, though other neutral spirits can also be used.
The result is a bittersweet liqueur with a fruity aroma. Apart from the classic version, umeshu comes in a variety of styles that may include other sweeteners such as honey or black sugar, while some add additional flavorings. Umeshu can be enjoyed straight, on the rocks, or diluted with water, tea, or soda.
It also incorporates well in cocktails and typically has 10-15% ABV. Ume plums were brought to Japan from China and are botanically classified as Japanese apricot. Apart from umeshu, they are also pickled (umeboshi) and can be enjoyed as a condiment or a side dish.