Yellow Mustards Seeds (Sarsyan Mustards Seeds).

These small round seeds come from mustard plant.  They range from reddish-brown to dark brown color, but when crushed they are yellow on the inside.  They have a pungent, sharp flavor, but when fried in oil, they impart a mellow nutty flavor.

Yellow mustard seeds (sarsyan) are used to cook fish and are believed to eliminate fishy odors.