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Bacalhau à Zé do Pipo

Salt cod with mayonnaise mash

Bacalhau à Zé do Pipo: cod loins on sweet onions under mayonnaise and piped mash, baked golden

Zé do Pipo was the nickname of a Porto tavern keeper in the 1960s whose cod won a national cooking competition, and the dish became a celebration plate in northern restaurants ever since. Thick cod loins sit on a bed of slow-cooked onions, are covered in mayonnaise and ringed with piped mashed potato, then baked until the top turns golden and blistered. Use a good shop-bought mayonnaise made with pasteurised egg; homemade mayonnaise with raw yolks is not for pregnant women, young children or anyone with a weakened immune system. A common mistake is a runny purée; the potato must be stiff enough to pipe, or it slumps under the mayonnaise. Chef's tip: pipe the mash while it is still warm, as cold mash cracks.
Total time
80 min
Difficulty
medium
Serves
4
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Ingredients

Serves4

For the cod

For the onions

  • ¼ cup olive oil
  • 3 onionsthinly sliced
  • 2 cloves garlicchopped

For the mash and topping

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What you'll need

Fresh ingredients (7)

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Method

0/6 done
  1. Step 1: Bring the 2 cups whole milk and 1 bay leaf to a simmer, add the soaked 4 thick salt cod loins, cover and poach very gently for 10 minutes, until just opaque and beginning to flake. Lift out and remove skin and bones, keeping the loins in large pieces.

    12 min
  2. Step 2: Cook the 3 onions and 2 cloves garlic in the ¼ cup olive oil over a low heat for 20 minutes, until meltingly soft and golden.

    20 min
  3. Step 3: Meanwhile, boil the 1 ¾ lb potatoes in salted water for 18 minutes, until soft. Drain, mash smoothly with the 1 ⅜ oz butter, ½ cup milk and 1 pinch grated nutmeg, then beat in the 1 egg yolk. Spoon into a piping bag with a large star nozzle.

    20 min
  4. Step 4: Heat the oven to 425°F. Spread the onions in an ovenproof dish and set the cod on top.

    3 min
  5. Step 5: Spread the 7 oz mayonnaise over the cod, covering it completely, then pipe a thick border of mash around the edges and between the pieces.

    8 min
  6. Step 6: Bake for 15–20 minutes, until the mayonnaise is puffed and golden brown and the mash edges are crisp. The cod should be piping hot in the middle. Decorate with 8 black olives if you like.

    18 min

Nutrition per serving

Calories
820 kcal
Protein
46 g
Carbs
40 g
Fat
52 g
Fibre
4 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

All recipes by this chef →

Good to know

How long does bacalhau à Zé do Pipo take?
About 80 minutes in total: 40 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 whole milk?
Semi-skimmed milk with 1 tbsp cream per 240ml (1 cup).
What can I use instead of onions?
2 shallots per onion.

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