Czernina
Few soups divide a Polish table like czernina, the dark, glossy duck broth of Greater Poland and Kashubia, tinted chocolate-brown with duck blood and sharpened with vinegar, then sweetened with dried plums, pears and apples. Farm families made it when a duck was killed in autumn, and in old Polish custom a suitor served czernina knew his proposal had been turned down. The taste is rich, sweet-sour and deeply savoury, with fine egg noodles to soak it up. Safety matters here: buy fresh duck blood from a butcher, already mixed with vinegar so it does not clot, keep it at fridge temperature and use it within a day. Undercooked blood is not for pregnant women, young children or anyone with a weakened immune system. People often let the soup boil hard after the blood goes in, and it turns grainy. Chef's tip: temper the blood with hot broth before stirring it into the pot, then heat gently to a steady simmer.
























