Bacalhau à Brás (Portuguese Salt Cod with Eggs and Potato)

About This Recipe

Bacalhau à Brás is the Lisbon tavern dish that all Portuguese expatriates dream about — a quick, soulful tangle of salt-cod flakes, golden matchstick potatoes (the kind that come crisp from a fryer or bag), softly scrambled eggs, and slow-fried onions, garnished with parsley and a handful of black olives. It was supposedly invented in the late 19th century by a man named Brás (or Braz) who ran a tavern in the Bairro Alto neighborhood; the dish was a way to stretch leftover salt cod and yesterday's potatoes into a satisfying meal for a few coins. Today it is on every traditional Lisbon menu and in every Portuguese grandmother's repertoire. The genius is in the technique: the eggs are not scrambled in advance; they are poured into the hot pan with the cod, potatoes and onions and stirred gently for just thirty seconds, so they form a soft creamy glaze that binds everything together without going dry. The dish must reach the table within a minute of finishing — over-scrambled eggs are the most common failure. Made with care, bacalhau à Brás is the perfect example of why salt cod (bacalhau) is called Portugal's 'fiel amigo' — faithful friend — the ingredient with 365 recipes, one for every day of the year.

Ingredients

Serves 4

• 500 gsalt cod (bacalhau), thick loin pieces, soaked 24–36 hours in cold water with 3 water changes
• 600 gfloury potatoes (Maris Piper, russet), peeled and cut into 3 mm matchsticks (or use bagged shoestring fries)
• 2 largeyellow onions, halved and thinly sliced into half-moons
• 4garlic cloves, finely minced
• 8 largevery fresh eggs, lightly beaten with a pinch of salt and pepper
• 100 mlextra-virgin olive oil (Portuguese if you can)
• 500 mlneutral oil for frying potatoes
• 1 small bunchflat-leaf parsley, finely chopped
• 20small black olives (Portuguese galega olives ideally), pitted

Instructions

1. 1

   Desalt the cod

   Place the salt cod in a large bowl of cold water, skin side up, in the fridge. Change the water 3 times over 24–36 hours (more time for thicker pieces). Test by tasting a small flake — it should taste pleasantly seasoned, not aggressively salty. Drain, pat dry, and shred into rough flakes with your fingers, removing skin and any pin bones.

2. 2

   Poach the cod briefly

   Bring a pot of fresh unsalted water to just below the boil. Add the cod flakes and poach 2 minutes — just long enough to firm them up. Drain and reserve. Skipping this step gives a chewy result; over-cooking gives mushy cod.

   Salt cod is already cured — it does not need 'cooking' in the conventional sense. The brief poach is just to plump and warm it.

3. 3

   Fry the potatoes

   Heat the neutral oil in a wok or deep pan to 175°C (345°F). Fry the potato matchsticks in 2–3 batches for 3–4 minutes per batch until crisp and golden. Drain on paper towels and salt lightly. Resist the urge to use pre-baked or oven 'fries' — only true fried matchstick potatoes give the classic texture.

   For a speed shortcut, use good-quality bagged shoestring potato sticks (Lay's or the equivalent) — Portuguese home cooks do this on weeknights.

4. 4

   Sweat the onions

   In a large wide pan or skillet, heat the olive oil over medium-low heat. Add the sliced onions and cook 12–15 minutes, stirring occasionally, until completely soft and pale gold but not browned. Add the minced garlic in the last 2 minutes — you want it cooked but not colored.

5. 5

   Combine cod and potatoes

   Add the shredded cod to the soft onions and stir gently to warm through, 2 minutes. Add the fried potato matchsticks and toss to combine — work quickly but gently so the potatoes don't crush. Grind in plenty of black pepper but don't salt yet — the cod and potatoes already carry salt.

6. 6

   Add the eggs (the critical moment)

   Reduce heat to low. Pour the beaten eggs over the cod-potato mixture. With a wooden spoon or spatula, gently stir and fold for 30–45 seconds — no more. The eggs should form soft creamy curds that coat everything but remain glossy and just barely set. If you cook them until firm, the dish is ruined.

7. 7

   Plate and serve immediately

   Pull the pan off the heat the moment the eggs look soft and glistening, not dry. Tip onto a warm serving platter, scatter generously with chopped parsley and the black olives, and bring straight to the table. Serve with a green salad dressed in olive oil and red wine vinegar, and a glass of crisp vinho verde or a young Douro red.

Variations

• •

  Bacalhau à Gomes de Sá — same ingredients but layered and baked rather than scrambled with eggs; a Porto-style cousin.

• •

  Bacalhau à Zé do Pipo — topped with a mayonnaise glaze and grilled to gold; old-school 1960s Lisbon restaurant style.

• •

  Bacalhau com natas — bound with béchamel and cream, baked golden; richer winter version.

• •

  Vegetarian á Brás — replace cod with finely shredded heart of palm and add a teaspoon of capers for brine; a modern Lisbon vegan adaptation.

Storage

Best eaten within 30 minutes of finishing — the eggs and potatoes both decline rapidly. Leftovers refrigerated up to 1 day reheat poorly; if necessary, gently warm in a dry pan, not the microwave. Not suitable for freezing.

Frequently Asked Questions