Hearty Pumpernickel Loaf

A proper pumpernickel has that deep, almost black crumb, chewy texture, and rich malt-molasses backbone that sets it apart from everyday rye bread. This bread machine version nails the classic flavor with two secret-weapon ingredients: unsweetened chocolate for color and bitter depth, and cold mashed potato for that tender, pillowy interior that real pumpernickel demands.

The chocolate is the old German baker’s trick. A single ounce of unsweetened bitter chocolate in the dough gives pumpernickel that signature dark color and a subtle bitterness that sits underneath the molasses sweetness. You won’t taste it as chocolate, you’ll taste it as proper pumpernickel.

Caraway seeds are non-negotiable. That warm, licorice-adjacent flavor is what makes a loaf pumpernickel instead of just dark bread. Skip the seeds and it’s just dark rye.

Kitchen Tips

• Melt the chocolate gently with the water before adding. Solid chunks don’t distribute and leave streaks in the crumb.
• Use cold, not hot, mashed potatoes. Hot potato cooks the yeast and kills the rise.
• Add ingredients in the order your bread machine specifies. Most want liquids first, then dry, then yeast last.
• This is a dense dough. It won’t rise as tall as a white bread, and that’s correct for pumpernickel.

Variations

• Stir in ½ cup chopped walnuts or raisins for texture and sweet pockets.
• Brush the top with an egg wash for a shiny, darker crust.
• Slice thin and pile with corned beef, sauerkraut, and Swiss for a Reuben sandwich.