Umeboshi are pickled plums made from the ume fruit, which is a type of Japanese apricot. These plums are typically harvested when they are unripe and then pickled in a mixture of salt and sometimes shiso leaves, giving them a distinctive flavor. Umeboshi are known for their sour and salty taste, and they are often used in Japanese cuisine as a condiment or side dish. In addition to their unique flavor, umeboshi are also valued for their health benefits. They are believed to aid digestion, boost energy, and have antibacterial properties. Commonly enjoyed with rice or in onigiri (rice balls), umeboshi are a staple in traditional Japanese meals.