Blaue Zipfel (Saure Zipfel)

Blaue Zipfel belong to Franconia, especially around Nuremberg, Bamberg, and the old Wirtshaus tables where a sausage does not always need a grill to prove itself. Raw bratwurst goes into a sharp Sud, a poaching liquor of vinegar, white wine, onion, bay, and spice, and comes out pale blue-grey at the skin. That colour is the dish. Don't apologise for it.

Im Norden anders, im Süden anders. The north has its fish and rye, the Rhineland its sweet-sour roasts, Swabia its dumplings; Franconia has a serious sausage culture and knows when not to brown one. Some cooks make the sud sharper with more vinegar, some softer with more wine, and some add carrot or leek. I keep it clean: onion, bay, pepper, juniper, a little sugar to round the acid, and good raw bratwurst.

The rule is simple. Boil the sud first so the onion softens and the spices give themselves up, then turn the heat down before the sausages go in. If the liquid boils around raw bratwurst, the casings split and the fat runs out into the pot. Gentle poaching sets the meat, tightens the skin, and lets the vinegar do its work without turning the sausage dry. Erst verstehen, dann kochen.

Serve them in the liquor with the onions, mustard or horseradish, and rye bread to catch the sour broth. Weggeworfen wird nichts. The sud is not a bath to throw away; it's half the plate.