German Pumpernickel

Instructions

1. Prepare the dough
   In a large mixing bowl, combine the rye meal, drained rye berries, sourdough starter, molasses, cocoa powder, salt, and oil. Gradually add warm water while mixing to form a thick, sticky dough. The consistency should be like very thick porridge.
2. Incorporate bread crumbs
   Fold in the old bread crumbs and caraway seeds (if using). This will help give the pumpernickel its characteristic dense texture. The dough will be very heavy and sticky - this is normal for authentic pumpernickel.
3. Prepare for baking
   Grease a 9x5 inch loaf pan and line with parchment paper, leaving overhang on the sides for easy removal. Transfer the dough to the pan and smooth the top with a wet spatula. Cover the pan tightly with aluminum foil, sealing well on all sides.
4. Slow baking process
   Place the covered pan in a cold oven. Set the temperature to 250°F (120°C) and bake for 4 hours. The low, slow baking process is essential for developing the characteristic dark color and deep flavor of traditional pumpernickel.
5. Steam bath (optional)
   For an even more authentic result, place a pan of water on the bottom rack of the oven during baking. This creates steam that helps develop the bread's distinctive crust and color.
6. Cooling process
   After baking, remove from the oven but keep the bread covered in the pan. Allow it to cool completely, at least 8 hours or overnight. This resting period is crucial for flavor development and proper texture.
7. Slicing and serving
   Once completely cooled, remove the bread from the pan and slice very thinly (about ⅛ inch thick) with a sharp serrated knife. Traditional pumpernickel is served with butter, cheese, or cured meats.