Skip to content

AI-generated image

Share this recipe

Karpfen blau

Carp poached in vinegar stock

Karpfen blau: Franconian Christmas Eve carp poached blue in vinegar stock

In Franconia and Bavaria, Christmas Eve supper is often carp, and the old way is 'blau': the fish is poached in a sharp vinegar stock that turns its natural skin slime a striking slate blue. It is served with melted butter, freshly grated horseradish and boiled potatoes, and many families keep a carp scale in their wallet for good luck in the year ahead. Buy carp already killed and gutted by the fishmonger, and ask for it unscaled and handled as little as possible, or the blue colour won't appear. Chef's tip: never rinse or wipe the carp skin, because the slime is what turns blue.
Total time
60 min
Difficulty
medium
Serves
4
One step at a time, big text, timers, read-aloud. Your screen stays on.

Ingredients

Serves4

For the stock

For the fish

To serve

Shop this recipe on Amazon

Fresh ingredients (7)

Links open Amazon in a new tab. As an Amazon Associate, WhatToEat.Today earns from qualifying purchases.

Method

0/5 done
  1. Step 1: Simmer 12 ½ cups water, 1 cup white wine vinegar, 1 onion, 1 carrot, 2 bay leaves, 10 black peppercorns, 4 lightly crushed juniper berries and 2 tbsp salt in a large, wide pan for 20 minutes.

    20 min
  2. Step 2: Lay 3 ⅓ lb carp, gutted and unscaled skin-side up in a shallow dish without washing it, and pour ½ cup white wine vinegar over the skin. It will turn blue almost at once.

  3. Step 3: Lower the fish into the barely simmering stock; the liquid should just tremble, not bubble. Poach for 15–20 minutes, depending on thickness.

    18 min
  4. Step 4: It is ready when the flesh near the backbone is opaque and flakes easily and a fin pulls out with no resistance. A common mistake is boiling the stock, which splits the skin and dulls the colour.

  5. Step 5: Lift out carefully onto a warm plate. Serve with 2 ⅞ oz butter, 4 tbsp fresh horseradish, 1 ¾ lb boiled potatoes, 1 handful parsley and 1 lemon.

Nutrition per serving

Calories
420 kcal
Protein
36 g
Carbs
20 g
Fat
22 g
Fibre
3 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

All recipes by this chef →

Good to know

How long does karpfen blau take?
About 60 minutes in total: 20 minutes to prepare and 40 minutes to cook.
How many people does it serve?
4 as written. Change the servings above the ingredients and every amount scales to match.
Is it gluten free?
Yes, as written. Check the labels on stock, sauces and spice mixes, which sometimes contain gluten.
What can I use instead of white wine vinegar?
Cider vinegar or rice vinegar, same amount.
What can I use instead of onion?
2 shallots per onion.

Reviews

No reviews yet. Be the first to cook it.

Rate this recipe

Sign in to rate and review this recipe.

Moreton Bay bugsSlipper lobster with garlic butter

Moreton Bay bugs are the flat, shovel-nosed slipper lobsters caught off the Queensland coast around Brisbane and the Sunshine Coast, and for Queenslanders they are a summer treat, split and grilled at the beach house. The tail meat is sweet and rich, somewhere between lobster and prawn. Buy them raw, frozen or fresh, from a fishmonger and ask them to halve them if you like. A common mistake is overcooking, which makes the meat rubbery; it is ready the moment it turns white. Chef's tip: grill flesh side down first to mark it, then turn and baste in the shell.

by KrazyBadal 2 views

Midia saganakiMussels with tomato and feta

Thessaloniki is Greece's mussel capital, with farms in the Thermaic Gulf a few kilometres from the seafront ouzeries where this two-handled pan arrives, still bubbling, at the table. Mussels steam open in a quick sauce of peppers, tomato and chilli, and crumbled feta melts into the juices at the end. Bread is essential. The classic version adds a splash of ouzo; this one is alcohol-free, using a pinch of fennel seed for that aniseed note (add 2 tbsp ouzo with the tomatoes if you like). Common mistake: overcooking — take the pan off the heat as soon as the shells open. Chef's tip: buy mussels on the day and keep them in the fridge in a bowl covered with a damp cloth, never in water.

30 minGreekFishGluten freeSpicy
by KrazyBadal 1 views

Pfälzer SaumagenStuffed pig's stomach

Saumagen is the pride of the Palatinate, served at wine-village festivals and family dinners from the Haardt hills to Ludwigshafen. A cleaned pig's stomach is stuffed with diced pork shoulder, pork sausage meat, potato and carrot seasoned with marjoram and nutmeg, poached slowly, then sliced thick and fried until crusty. The stomach works only as a casing and is ordered from a butcher; if you can't get one, bake the same filling in a covered terrine in a water bath. Serve with sauerkraut and mashed potato. Chef's tip: fill the stomach only three-quarters full, or it bursts as the potatoes swell.

225 minGermanMeatGluten free
by KrazyBadal 1 views

Perfect for:Christmas