Bauernbrot
*Edited to add formula. Pretty sure this is what I did. Now that I look at it again it could probably stand some tinkering.
I’d heard that freshly ground coriander seeds were altogether different from the prepackaged powder, but… Wow! Now I get it. And, as for what freshly ground coriander does to a hearty rye, I have not the words. But I do have the bread.