My wife makes two loves of German pumpernickel twice a week.
Awesome!
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Lest this post seem non sequitur, my wife makes her pumpernickel bread with starters made from my sourdough mother (which I have gladly enlisted to the cause). I take pride in my breadmaking, but I gotta say her pumpernickel bread kicks my ass, bread-wise. Apparently it is a family receipe that my mother-in-law brought with her from Germany.