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Czernina

Sweet-sour duck blood soup

Czarnina: sweet-sour duck broth thickened with duck blood, with dried fruit and noodles

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.
Total time
150 min
Difficulty
hard
Serves
6
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Ingredients

Serves6

For the broth

For the fruit and thickening

To serve

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Fresh ingredients (4)

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Method

0/9 done
  1. Step 1: Put the 2 ⅝ lb duck pieces (legs, wings, neck, back) and cold 10 ½ cups water in a large pot and bring to a boil over a high heat, skimming the foam carefully for the first 10 minutes.

    15 min
  2. Step 2: Add the 2 carrots, 1 parsley root, 3 ½ oz celeriac, 1 onion, 3 bay leaves, 6 allspice berries, 8 black peppercorns and 2 tsp salt. Lower the heat and simmer, uncovered, for 1 hour 15 minutes, until the duck meat falls away from the bone (well past 165°F).

    75 min
  3. Step 3: Strain the broth into a clean pot; you need about 1.8 litres. Pick the meat from the bones in shreds and slice the carrot; discard the rest.

    10 min
  4. Step 4: Add the 3 ½ oz pitted prunes and 3 ½ oz dried pears or apples to the broth and simmer over a medium-low heat for 20 minutes, until plump and soft.

    20 min
  5. Step 5: Meanwhile cook the 9 oz fine egg noodles in salted water according to the packet, drain and keep aside.

    8 min
  6. Step 6: In a bowl, whisk the cold 1 cup fresh duck blood, mixed with vinegar at the butcher with the 2 tbsp plain flour, 3 tbsp spirit vinegar (10%) and 2 tbsp sugar until smooth. Whisk in a ladle of hot broth, then a second, to warm it gently.

    3 min
  7. Step 7: Pour the blood mixture into the pot in a thin stream, stirring all the time. Heat over a medium-low heat for 5 minutes, stirring, until it returns to a gentle simmer and the soup is steaming hot throughout, thickened and dark brown. Do not let it boil hard.

    5 min
  8. Step 8: Taste and balance with more vinegar, sugar or salt: it should be clearly sweet and sour. Return the shredded duck and carrot to warm through for 2 minutes.

    2 min
  9. Step 9: Put noodles in each bowl, ladle the hot czernina over with some fruit and meat, and add a pinch of ½ tsp dried marjoram if you like.

    2 min

Nutrition per serving

Calories
480 kcal
Protein
29 g
Carbs
52 g
Fat
17 g
Fibre
4 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

All recipes by this chef →

Good to know

How long does czernina take?
About 150 minutes in total: 30 minutes to prepare and 120 minutes to cook.
How many people does it serve?
6 as written. Change the servings above the ingredients and every amount scales to match.
What can I use instead of carrots?
Parsnip or sweet potato, same weight.
What can I use instead of onion?
2 shallots per onion.

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