Best 8 Cod Leek Potato Gratin Recipes

CREAMY COD AND POTATO GRATIN

Steps:

• Place potatoes in a large pot of well-salted water and bring to a boil over high heat. Reduce heat and simmer gently until tender, about 20 minutes.
• While potatoes simmer, trim, bone, and cut the cod fillets across into 2-inch pieces.
• Drain potatoes well and return to the pot. Add a pinch of cayenne, salt, and 4 tablespoons butter. Mash until smooth.
• Preheat the oven to 450 degrees F (230 degrees C). Grease 2 individual-sized casserole or baking dishes with 1 tablespoon butter. Place both dishes on a baking sheet.
• Transfer about 2/3 cup of the mashed potatoes into each of the prepared dishes. Smooth out evenly and make a shallow depression with a spoon down the middle. Set aside.
• Heat remaining 2 tablespoons butter in a deep 10-inch skillet over medium-high heat. Cook the shallots in the hot butter with a pinch of salt until they just start to turn golden, 3 to 4 minutes. Add cream, lemon zest, and a pinch of cayenne, and bring to a simmer. Add cod and wait for the sauce to come back to a simmer. Cook for 1 minute, while basting with the sauce; turn and cook for 1 minute more.
• Pour in lemon juice and turn off the heat; stir for about 30 seconds.
• Divide the pieces of cod over the potato. Add enough sauce to just cover the fish and return the pan to the stove.
• Bring sauce to a boil over medium-high heat and cook until the sauce reduces and thickens, 1 to 2 minutes. Turn off the heat and stir in tarragon.
• Spoon the thickened sauce over the cod. Add a light dusting of Parmigiano-Reggiano cheese.
• Bake in the center of the preheated oven until cod is cooked through and the sauce is browned and bubbling, 10 to 15 minutes. Let rest for 5 minutes before serving.

COD WITH LEEKS AND TOMATOES

Steps:

• Preheat the oven to 450°F. In a 9-by-13-inch baking dish, toss together the leeks, lemon zest, lemon juice, oil, thyme, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Cover with foil, and bake until the leeks just begin to soften, 8 to 10 minutes.
• Remove the baking dish from the oven. Add the tomatoes, and toss to combine. Season both sides of the cod fillets with 1/2 teaspoon salt and 1/4 teaspoon pepper; place on top of the vegetables.
• Cover the dish and bake until the fish is opaque throughout, 15 to 20 minutes. Serve immediately.
• Preparing the Leeks
• First cut away and discard the leek's root and dark-green leaves, then thinly slice the white and light-green parts crosswise into rounds. Wash the leek rounds well, as described on page 23. Drain on paper towels.

POTATO LEEK GRATIN

Steps:

• Heat oven to 350 degrees and butter a 2-quart gratin dish. Wash the leeks to remove any grit and slice thinly crosswise.
• Using a mandoline or sharp knife, slice the potatoes into rounds, 1/8-inch thick. Toss with 3/4 teaspoon salt and 1/4 teaspoon pepper. Layer the rounds in the gratin dish.
• Melt the 2 tablespoons butter in a large skillet over medium heat. Add leeks, remaining salt and pepper, and thyme. Cook, stirring, until leeks are tender and golden, 5 to 7 minutes. Discard thyme and scatter the leeks over the potatoes.
• Add cream, garlic and bay leaf to the skillet, scraping up browned bits of leeks from the bottom of the pan. Simmer gently for 5 minutes. Stir in nutmeg.
• Pour the cream over the leeks and potatoes and top with the Gruyère. Cover with aluminum foil and transfer to the oven. Bake for 40 minutes, uncover and bake until the cheese is bubbling and golden, 15 to 20 minutes longer. Let cool slightly before serving.

CREAMY COD AND POTATO GRATIN

Steps:

• Place potatoes in a large pot of well-salted water and bring to a boil over high heat. Reduce heat and simmer gently until tender, about 20 minutes.
• While potatoes simmer, trim, bone, and cut the cod fillets across into 2-inch pieces.
• Drain potatoes well and return to the pot. Add a pinch of cayenne, salt, and 4 tablespoons butter. Mash until smooth.
• Preheat the oven to 450 degrees F (230 degrees C). Grease 2 individual-sized casserole or baking dishes with 1 tablespoon butter. Place both dishes on a baking sheet.
• Transfer about 2/3 cup of the mashed potatoes into each of the prepared dishes. Smooth out evenly and make a shallow depression with a spoon down the middle. Set aside.
• Heat remaining 2 tablespoons butter in a deep 10-inch skillet over medium-high heat. Cook the shallots in the hot butter with a pinch of salt until they just start to turn golden, 3 to 4 minutes. Add cream, lemon zest, and a pinch of cayenne, and bring to a simmer. Add cod and wait for the sauce to come back to a simmer. Cook for 1 minute, while basting with the sauce; turn and cook for 1 minute more.
• Pour in lemon juice and turn off the heat; stir for about 30 seconds.
• Divide the pieces of cod over the potato. Add enough sauce to just cover the fish and return the pan to the stove.
• Bring sauce to a boil over medium-high heat and cook until the sauce reduces and thickens, 1 to 2 minutes. Turn off the heat and stir in tarragon.
• Spoon the thickened sauce over the cod. Add a light dusting of Parmigiano-Reggiano cheese.
• Bake in the center of the preheated oven until cod is cooked through and the sauce is browned and bubbling, 10 to 15 minutes. Let rest for 5 minutes before serving.

CREAMY POTATO AND LEEK GRATIN

Steps:

• Preheat oven to 400°F with rack in middle. Generously butter a 3-qt shallow baking dish. Cut a round of parchment paper to fit just inside a 12-inch heavy skillet, then set parchment aside.
• Halve leeks lengthwise, then cut crosswise into 1 1/2-inch pieces (you should have about 8 cups). Wash leeks.
• Cook leeks in butter with 1/2 tsp salt and 1/4 tsp pepper, covered with parchment round, in skillet over medium heat, stirring occasionally, until tender, 10 to 12 minutes.
• Meanwhile, peel potatoes and slice crosswise 1/16 inch thick with slicer. Transfer to a large heavy pot with cream, milk, thyme, 1 tsp salt, and 1/2 tsp pepper and bring to a boil over medium heat, stirring occasionally (liquid will thicken). Stir in leeks, then transfer to baking dish.
• Bake, uncovered, until potatoes are tender, 45 minutes to 1 hour. Let stand 10 minutes before serving.
• Do Ahead
• Gratin can be baked 2 days ahead and chilled. Let stand at room temperature 30 minutes, then reheat, covered, in a 350°F oven until hot, about 30 minutes.

POTATO & LEEK GRATIN

Steps:

• Pour the stock, cream and milk into a small saucepan, add the garlic and bay leaf and bring to the boil. Remove from the heat, cover and let the flavours infuse while you get on with the rest of the dish.
• Preheat the oven to 180C/gas 4/fan 160C. Butter a 2 litre gratin dish well. Mix the potatoes, leeks and ham (if using) together in the dish, and spread out in an even layer. Pour over the stock mixture and tuck the bay leaf in the middle. Season and sprinkle with the cheese.
• Stand the dish on a baking tray to catch any spills. Loosely cover with foil and bake for 30 minutes. Test the potatoes with a knife - they should be just beginning to soften. Remove the foil and bake for another 35-45 minutes, spooning some of the stock mixture over every now and again until the potatoes are tender. Cool for 15 minutes before serving.

POTATO AND LEEK GRATIN

Steps:

• Preheat oven to 400 degrees.
• Fill a large bowl with water. Peel potatoes and add them to water as you peel, to prevent discoloration.
• Melt butter in a medium saucepan over medium heat. Add leeks and cook, stirring, until soft, 3 to 5 minutes. Add cream, milk, and nutmeg; cook until bubbles form around the edge. Remove from heat.
• Meanwhile, slice potatoes 1/8-inch thick. Place in even layers in a large shallow baking dish; season with salt and pepper. Pour leek-cream mixture over potatoes; sprinkle with cheese.
• Transfer to oven and bake until potatoes are fork-tender and top is brown and bubbling, about 55 minutes. Remove from oven and let cool about 10 minutes before serving.

SALT COD AND LEEK GRATIN

Steps:

• Soak the salt cod in cold water a minimum of 24 hours, changing water as often as possible. Rinse before using.
• In a large pot, cover the soaked, rinsed cod with fresh cold water. Add garlic cloves and bay leaves. Bring to a boil and reduce heat to low. Simmer until the fish flakes to the touch.
• Drain off the water and let fish cool. Discard bay leaves and garlic cloves. When fish is cool, separate into small flakes. Set aside.
• Preheat oven to 375°F (190°C).
• Cook leeks gently in 1/4 cup butter and 1/4 cup olive oil until soft, seasoning lightly with salt, cayenne and black pepper.
• Add to the flaked cod and toss together gently. Set aside.
• Prepare a béchamel sauce by using a wooden spoon to blend second 1/4 (50 mL) cup butter with flour over medium heat.
• Whisk in milk gradually, stirring constantly until béchamel sauce is thick and smooth. Remove from heat; cool slightly.
• Mix together béchamel sauce, Gruyère, leek and cod mixture.
• Pour into a 3 or 4 cup heat-proof buttered baking dish, dot with butter and bake in preheated oven for 15 to 20 minutes.
• Gratin should be crisp, golden and bubbling.
• Garnish with black olives and a sprig of Italian parsley, if desired.
• Serve with toasted baguette or crisp flatbreads.