Schwarzsauer

Schwarzsauer is northern table work, strongest in Mecklenburg, Schleswig-Holstein, Hamburg, and old Pomeranian kitchens. It belongs to slaughter day and the cold months, when the pig was broken down and every useful piece had to find its pot. Weggeworfen wird nichts, nothing gets thrown away. The shoulder trim, belly, heart, tongue, rind, bones, and blood all have a job here.

The regions argue in the usual way. Mecklenburg and Pomerania often bring dried pears or prunes into the pot, sweet against vinegar. Schleswig-Holstein keeps it plainer and sharper. Some houses made it from duck or goose blood at Martinmas, others from pork on butchering day. Im Norden anders, im Süden anders, and the south does not own this dish.

One technique decides whether Schwarzsauer works: the blood goes in tempered and off the boil. Boil it hard and it turns grainy, grey, and bitter. Whisk a little hot broth into the blood first so it warms gently, then stir it back into the pot and keep it just below a simmer. The blood thickens the broth like a dark custard, and the vinegar keeps the flavour clean instead of flat.

This is not pretty food in the shop-window sense. It is dark, glossy, sweet-sour, and useful. Serve it with boiled potatoes or rye bread, taste the salt after the blood goes in, and don't apologize for the pot.