Tonka beans are the seeds of the Dipteryx odorata tree, native to South America. They have a sweet, rich aroma reminiscent of vanilla, almond, and spices, making them popular in culinary uses and perfumery. The beans are typically dried and grated to release their fragrance and flavor. In addition to their culinary appeal, tonka beans contain a compound called coumarin, which is responsible for their distinctive scent. However, due to potential health concerns, particularly in large quantities, their use in food is restricted in some countries, including the United States.