Locust beans, or carob, come from the Ceratonia siliqua tree. They are used in various culinary applications for their sweet, nutty flavor and natural thickening properties. In West Africa, fermented locust beans, known as 'ogiri' or 'ogiri okpei,' are a key ingredient in traditional dishes, adding depth and umami. Rich in fiber, protein, and essential minerals, they also have health benefits such as aiding digestion and providing antioxidants.