Mahleb, also known as Mahlab or Mahaleb, is a spice derived from the seeds of the St. Lucie cherry (Prunus mahaleb) tree, which is native to regions of the Middle East, Mediterranean, and parts of Eastern Europe. The seeds of the St. Lucie cherry have a distinct flavor and aroma, similar to a combination of cherry and almond with a hint of floral notes. Mahleb is commonly used in culinary applications, particularly in Middle Eastern, Mediterranean, and Eastern European cuisines. It is often used in the preparation of sweets, baked goods, and desserts, such as breads, pastries, cookies, and cakes. Mahleb is typically used in small amounts, as its flavor can be quite potent. It is often used as a flavoring agent to add a unique and exotic taste to recipes. In addition to its culinary uses, mahleb has also been used in traditional medicine for its potential health benefits. However, it's important to note that any health claims associated with mahleb should be supported by scientific evidence, and consulting a qualified healthcare professional is always recommended before using any ingredient for medicinal purposes.