Derived from mustard plants, these seeds have a characteristic small, round shape. Great for making your own mustard condiments, these seeds are capable of producing a spicier variety of mustard than standard store-bought yellow mustard. Yellow mustard seed also serves as a vital component to pickling and shrimp and crab boil blends. The pungent flavor enzymes are activated by water, yet dry-roasting the seeds will bring out their aromatic and appealing flavor. You can also cook them in oil to produce a subtle, less pungent flavor.