Cilantro leaves, also known as cilantro in many parts of the world, are the fresh herb of the coriander plant. In contrast to the warm, nutty coriander seeds, the leaves have a very distinctive, sharp, and lemony flavor, often with a slightly peppery note. However, for some people with a genetic predisposition, the leaves taste like soap, making the herb a controversial but popular spice. Fresh coriander is a central ingredient in Mexican, Southeast Asian, and Indian cuisine. It is almost always added at the end of cooking or used as a garnish, as its flavor is quickly lost to heat. Coriander leaves are essential in the preparation of salsa, guacamole, curries, dals, and Thai dishes. Their fresh, invigorating flavor adds a distinctive, bright zest and a splash of color to many dishes.