So, my husband grew up with Norweigian and German heritage, and he remembers fondly a bread he called pumpernickel. Unfortunately what he calls pumpernickel and the recipes I am finding are nothing close. He describes a very dense bread, possibly with whole grains in it, that was sourdough for sure (tangy I think is the word he described) brown in colour but not really dark. He said it was "square." Could someone tell me what I am looking for in terms of a recipe? Obviously it has another name, because I'm drawing a blank. His birthday is coming up and I'd like to make him one.