I have a question about the recipe "Extraordinary Marinated and Roasted Chicken, Potatoes, and Chickpeas" from divasparkle. The recipe refers to "coriander." Is this reference to actual coriander herb or to cilantro? So far I have been unable to find coriander but able to find cilantro. Per my research, cilantro and coriander are not the same and may not be used interchangably. I found whole coriander seeds. Please let me know what I should use. Thanks.