Soak the salted cod in cold water for at least 24 hours, changing the water frequently to remove excess salt.
Peel the potatoes and cut them into small cubes. Boil them in salted water until tender, then drain and set aside.
Boil the cod in hot water for 10-15 minutes, then drain and flake it with a fork.
In a skillet, heat the olive oil and sauté the finely chopped onions and garlic until softened. Add the flaked cod and cook for a few minutes, stirring occasionally.
In a saucepan, melt the butter, add the flour, and cook over medium heat, stirring constantly, until a smooth, light roux forms. Gradually whisk in the milk until the mixture thickens into a béchamel sauce. Stir in the heavy cream and season with salt and pepper.
In a baking dish, layer the potatoes, the cod mixture, and the béchamel sauce. Repeat the layers until all ingredients are used. Sprinkle the grated Parmesan cheese on top.
Preheat the oven to 350°F (180°C) and bake for 25-30 minutes, or until the top is golden brown. Serve hot with a fresh salad.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.