A January Sunday, a pot on low heat since morning

Polish tripe soup (flaki): three hours of simmering, three tablespoons of marjoram

A soup that cannot be hurried. Tripe is largely collagen, and collagen turns into soft gelatine only after two and a half, sometimes three hours of gentle simmering — there is no shortcut and a higher flame does not help. What you get in return is a broth that is thick and velvety of its own accord. The rest is vegetables cut into fine matchsticks, a blond roux, and more marjoram than seems reasonable, which turns out to be exactly right.

Total
3 h 35 min 40 min hands-on
Yield
6 servings
Difficulty
medium · October – March
Polish tripe soup (flaki): three hours of simmering, three tablespoons of marjoram

Your own work in that: 35 min.

Rinsing and blanching15 min
Tripe simmering150 min
Vegetables30 min
Roux and seasoning20 min
  • Rinsing and blanching 15 min
  • Tripe simmering 150 min
  • Vegetables 30 min
  • Roux and seasoning 20 min
Your workWaits on its own

Step by step

0 / 8 done
  1. Tripe soup, step 1: Cold water, 5 mm strips

    Rinse the tripe

    Shop tripe is already cleaned and sliced, but rinse it under cold running water for 2 to 3 minutes, working it through your fingers. If you buy it in sheets, cut it into strips 5 mm wide and 5 cm long.

    Ingredients: 800 g cleaned, sliced beef tripe · 500 g beef marrow bones · 3000 ml water · 1 pcs onion · 3 pcs bay leaves · 6 pcs allspice berries · 8 pcs black peppercorns

    TipBuy tripe that is white or cream-coloured and smells of nothing much. Greyish, slimy or sharply barnyard-smelling tripe has been stored badly, and no amount of cooking will fix it.

    Cold water, 5 mm strips
  2. Tripe soup, step 2: Ten minutes, then all the water goes

    Blanch and throw the water away

    Cover the tripe with water, bring to the boil and cook 10 minutes, skimming the grey foam. Drain the whole lot in a sieve, rinse the pot, and rinse the tripe in warm water.

    TipThis first water carries off residual fat and the compounds behind tripe's characteristic smell. Poured away, it turns an assertive soup into a delicate one. Never keep it as the base of the broth.

    Ten minutes, then all the water goes
  3. Tripe soup, step 3: A barely trembling surface, two and a half hours

    Simmer gently for two and a half hours

    Cover the rinsed tripe with 3 litres of fresh water, add the bones, charred onion, bay leaves, allspice and peppercorns. Bring to the boil, skim, and simmer under a tilted lid over very low heat for 2.5 hours. The surface should barely tremble, not bubble. Do not salt at this stage.

    Ingredients: 800 g cleaned, sliced beef tripe · 500 g beef marrow bones · 3000 ml water · 1 pcs onion · 3 pcs bay leaves · 6 pcs allspice berries · 8 pcs black peppercorns

    TipCollagen turns into gelatine slowly — just below the boil it takes hours. A hard boil in an open pot does not speed this up; it only clouds the broth and boils it away fast. Salt only at the end, as the broth reduces a lot over these hours and is easy to oversalt.

    A barely trembling surface, two and a half hours
  4. Test whether the tripe is ready

    Lift out a strip and cut it with the edge of a spoon. If it goes through without resistance, and a bitten piece is soft and slightly gelatinous, the tripe is done. If it springs back like rubber, simmer another 30 minutes and test again — sometimes it takes a full three hours.

  5. Tripe soup, step 5: Matchsticks, not dice

    Add the vegetables

    Remove the bones, onion and spices. Cut the carrot, parsley root and celeriac into fine matchsticks and the leek into half-moons. Add to the pot and simmer 25–30 minutes, until the vegetables are tender.

    Ingredients: 2 pcs carrots · 1 pcs parsley root · 150 g celeriac · 1 pcs leek, white part

    TipMatchsticks, not dice: the vegetables should echo the shape of the tripe strips, so that a spoonful reads as one dish rather than a soup with things added to it.

    Matchsticks, not dice
  6. Tripe soup, step 6: Pale gold, loosened with broth

    Make a blond roux

    Melt the butter in a small pan, add the flour and cook over medium heat 2 minutes, stirring, until it smells nutty but stays pale gold. Loosen with two ladles of hot broth, whisking until smooth, and pour into the pot. Simmer 5 minutes.

    TipA roux cooked for less than 2 minutes leaves a raw, floury taste in the soup; cooked longer it darkens and loses thickening power as the starch breaks down. Pale gold is the point where it has both.

    Pale gold, loosened with broth
  7. Tripe soup, step 7: Three tablespoons of marjoram, crushed by hand

    Season generously with marjoram

    Add the salt, pepper, paprika, ginger and nutmeg. Crush the marjoram between your palms over the pot — all 3 tablespoons — and simmer 3 minutes more. Taste: flaki should be distinctly peppery and strongly marjoram-scented; it is the marjoram, not the broth, that makes this soup what it is.

    Ingredients: 40 g butter · 2 tbsp plain flour · 3 tbsp dried marjoram · 1 tsp sweet paprika · 1 pinch ground ginger · 1 pinch nutmeg · 2 tsp salt · 1 tsp black pepper

    Three tablespoons of marjoram, crushed by hand
  8. Tripe soup, step 8: With bread, marjoram to add at the table

    Serve

    Ladle into deep bowls and serve with bread and separate little dishes of marjoram and pepper, so everyone can add their own. The next day flaki is thicker and better; it keeps 3 days in the fridge and freezes well.

    Ingredients: 6 pcs rye bread

    With bread, marjoram to add at the table

Before you start

In a pressure cooker

After blanching, cook the tripe under pressure for 45 minutes instead of 2.5 hours. The result is very close, though the broth comes out slightly less clear.

Make a batch

Cook a double quantity of tripe in its broth and freeze it in portions without the roux and marjoram. From that base, dinner takes 20 minutes.

Warsaw-style flaki

The same base plus 2 tablespoons of grated hard cheese and small meatballs from 200 g minced beef dropped in for the last 15 minutes, until cooked through. The festive version, considerably more filling.

Nutrition

per 100 g
62kcal
4 gcarbs
5 gprotein
3 gfat

Step photos are computer-generated from the recipe.

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