Bacalhau com Natas

Ingredients

Equipment Needed

• •Large wide pan for the refogado
• •Saucepan for béchamel
• •Deep baking dish (25x35cm)
• •Large pot for potatoes and cod

Instructions

1. 1

   Prepare the bacalhau

   Drain the soaked cod and place it in a wide pot. Cover with fresh cold water and bring just to a simmer over medium heat. The moment you see the first bubbles rising, remove the pot from the heat. Let it sit for 10 minutes, covered. This gentle approach keeps the fish tender. Drain, let it cool enough to handle, then shred into generous flakes with your fingers, removing any skin and bones. Set aside.

   Never boil bacalhau. Boiling makes it tough and stringy. You want it barely kissed by heat, tender enough to flake easily.
2. 2

   Par-cook the potatoes

   Bring a large pot of salted water to a boil. Add the sliced potatoes and cook for 8 minutes, until just barely tender when pierced with a knife. They should still have some resistance. Drain well and set aside. The potatoes will finish cooking in the oven. Undercook them now or they'll turn to mush later.

3. 3

   Build the refogado

   In a wide pan, heat the azeite over medium-low heat. Add the sliced onions and cook slowly, stirring occasionally, until completely soft and golden, about 15 minutes. Don't rush this. Avó Leonor always said the refogado is where the flavor lives. Add the garlic in the final minute, just until fragrant. Remove from heat and fold in the shredded bacalhau, coating it gently in the sweet, golden onions.

   The onion should practically melt before you add the garlic. This slow cooking transforms sharpness into sweetness. It's the foundation of everything.
4. 4

   Make the béchamel

   In a saucepan, melt the butter over medium heat. Add the flour and whisk constantly for 2 minutes to cook out the raw taste. Slowly pour in the milk, whisking continuously to prevent lumps. Once smooth, add the cream and continue whisking until the sauce thickens enough to coat the back of a spoon, about 5 minutes. Season with nutmeg, a little pepper, and taste before adding salt. Remember, the bacalhau still carries some brininess even after soaking.

   Freshly grated nutmeg makes a difference you'll notice. That little bit of warmth in the background is what separates good béchamel from great.
5. 5

   Assemble the dish

   Preheat the oven to 200°C (400°F). Lightly grease a deep baking dish, about 25x35cm. Spread half the potatoes in an even layer on the bottom. Spoon the bacalhau and onion mixture over the potatoes. Pour half the béchamel over the fish. Add the remaining potatoes in another layer, then cover with the rest of the béchamel, making sure it reaches all the edges. Scatter the grated cheese evenly over the top.

6. 6

   Bake until golden

   Bake for 35 to 40 minutes, until the top is deeply golden and the sauce is bubbling up around the edges. The cheese should have dark spots where it caught the heat. Let it rest for 10 minutes before serving. This resting time is not optional. It lets the layers settle and the sauce thicken. Cut into it too soon and it runs everywhere. Scatter parsley over the top and bring it to the table in the baking dish. This is not restaurant food. This is family food.

Chef Tips

• •The soaking is not negotiable. Two days minimum, water changed three times. Taste a small piece before cooking. If it's still aggressively salty, keep soaking. The cream amplifies any salt that remains.
• •Use a mixture of cheeses. Queijo flamengo gives you that melty quality Portuguese cooks love, while a little parmesan adds depth. All parmesan and you lose the texture. All flamengo and you lose complexity.
• •Don't skip the resting time after baking. I know the bubbling cheese is tempting. But those 10 minutes let everything set. You want sliceable portions, not a cream flood.
• •This reheats beautifully. Cover with foil and warm at 160°C until heated through. The flavors actually improve overnight as everything melds together.

Advance Preparation

• •The bacalhau must soak for 2 days minimum, with water changed three times. This is your starting point. Plan accordingly.
• •The dish can be fully assembled up to 24 hours ahead and refrigerated, covered. Add 10-15 minutes to the baking time if going straight from fridge to oven.
• •Leftovers keep well for 3 days refrigerated and reheat beautifully. Some say it's even better the next day.

Frequently Asked Questions

Nutrition Information

1 serving (about 445g)