Umeboshi plum is a traditional Japanese food made from ume fruit, which is a type of Japanese apricot. The fruit is picked when it is still green and unripe, then it is soaked in brine and dried in the sun. This process gives umeboshi its distinctively salty and sour taste. The plums are often red due to the addition of red shiso leaves during the pickling process, which also imparts a slightly herbal flavor. Umeboshi plums are commonly eaten with rice, used in onigiri rice balls, or served as a condiment. They are also believed to have various health benefits, including aiding digestion and boosting energy levels. Umeboshi has a long history in Japanese cuisine and culture, and it remains a popular food item for its unique flavor and potential health benefits.