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Atún encebollado

Atún encebollado: Barbate tuna stewed in a deep pile of slow-cooked onions

When the almadraba nets bring bluefin tuna ashore in Barbate and Zahara de los Atunes in May and June, households along the Cádiz coast make atún encebollado: chunks of tuna braised in a mountain of onions cooked down until sweet and golden, with bay, pepper and a splash of fino. Any good tuna steak works the rest of the year. This recipe uses wine; the alcohol-free option is in the ingredient note. Chef's tip: the onions take the time, the tuna does not; add it only for the last few minutes, or it turns dry and grey.
Total time
65 min
Difficulty
easy
Serves
4
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Ingredients

Serves4

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Method

0/5 done
  1. Step 1: Heat ½ cup olive oil in a wide casserole over a medium-low heat. Add 2 ¼ lb onions, 4 cloves garlic, 2 bay leaves and 8 black peppercorns with half of ¾ tsp salt.

  2. Step 2: Cook slowly, stirring every few minutes, for 35–40 minutes, until the onions have collapsed to about a third of their volume and are soft, sweet and pale gold. A common mistake is raising the heat to hurry them: they scorch and turn bitter before they turn sweet.

    40 min
  3. Step 3: Stir in 1 tsp sweet paprika, then pour in ½ cup fino sherry or dry white wine and let it bubble for 2 minutes until the sharp smell of alcohol has gone.

    2 min
  4. Step 4: Season 1 ½ lb tuna steak with the rest of ¾ tsp salt and nestle it into the onions. Cover and cook over a low heat for 6–8 minutes, turning the pieces once, until the tuna is just opaque all the way through and flakes when pressed.

    8 min
  5. Step 5: Take off the heat and rest for 5 minutes, covered. Serve with bread or fried potatoes.

    5 min

Nutrition per serving

Calories
450 kcal
Protein
44 g
Carbs
18 g
Fat
22 g
Fibre
3 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

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Good to know

How long does atún encebollado take?
About 65 minutes in total: 15 minutes to prepare and 50 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 onions?
2 shallots per onion.
What can I use instead of garlic?
½ tsp garlic paste or ⅛ tsp garlic powder per clove.

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