black sesame seeds
Black sesame seeds are packed with flavor. They are certainly tastier that white sesame seeds. They are also rich in certain minerals. their flavor is slightly nutty.
In the US black sesame seeds are not used as much, but in the cuisine of the Middle East they play a more prominent role.
You can buy them in the ethnic section of your local grocery store, or a Middle Eastern market. Of course you can always buy them online.