These savory, herbaceous Red River Coriander seeds are an heirloom varietal with small, dark seeds. They are aromatic and boldly flavored, with earthy undertones and just a touch of lemon zest. Use them as a finishing spice or add them to dishes that are going to simmer for a long time, allowing the nutty, herbaceous flavor to truly bloom. This coriander is grown and ground by a collective of Hmong farmers along the Red River in the northern highlands of Vietnam. Coriander, the seed of the cilantro plant, is ubiquitous in Vietnamese and other Southeast Asian cuisines, where the entire plant—seed, leaves, and roots—are used to season and garnish dishes.