Leek Gratin Recipes

LEEKS AU GRATIN

Steps:

• Heat oven to 325°F. Grease bottom and side of shallow 2-quart casserole. Cut leeks into 1/2-inch pieces. In 3-quart saucepan, heat 2 inches water to boiling. Add leeks. Cover and cook over medium heat about 5 minutes or until crisp-tender; drain.
• In 2-quart saucepan, melt 2 tablespoons butter over low heat. Cook flour, salt and pepper over low heat, stirring constantly, until smooth and bubbly; remove from heat. Gradually stir in milk. Heat to boiling, stirring constantly. Boil and stir 1 minute. Stir in cheese until melted. Stir in leeks. Pour into casserole.
• In small bowl, mix bread crumbs and 2 teaspoons butter until crumbly. Sprinkle evenly over casserole.
• Bake uncovered about 25 minutes or until golden brown.

LEEKS AU GRATIN

Steps:

• Preheat oven to 375°. Cut off the root end and the tough leaf ends, then cut leeks lengthwise in half; cut halves crosswise into 3-in. pieces. Place cream, salt, pepper and leeks in a large cast-iron or other ovenproof skillet; bring to a boil over medium-high heat. Reduce heat; simmer, covered, 5 minutes. Uncover; simmer 15 minutes. Remove from heat; sprinkle with cheese., Bake, uncovered, until top is golden and leeks are tender, 15-20 minutes. Let stand 5-10 minutes before serving.

LEEK GRATIN

Steps:

• Preheat oven to 375 degrees. Halve leeks lengthwise, leaving halves attached at root, and rinse well, shaking off water.
• In a large skillet, combine cream and leeks; season with salt and pepper. Bring to a boil over medium-high; reduce to a medium simmer, cover, and cook 5 minutes. Uncover and simmer until leeks are tender, 15 minutes. Transfer leeks and sauce to a shallow 2-quart baking dish.
• Sprinkle with cheese and bake until golden and bubbling, about 35 minutes. Let gratin rest 10 minutes before serving.

VEGAN POTATO LEEK GRATIN

Steps:

• Combine leeks, margarine, garlic, 2 teaspoons oregano, 2 teaspoons rosemary, salt, and pepper in a large saucepan over medium heat. Cook until leeks are soft, 7 to 8 minutes. Add potatoes, coconut milk, almond milk, and flour and bring to a simmer. Cover and simmer until potatoes are almost cooked, 10 to 15 minutes. Add more liquid if mixture starts to stick.
• Preheat the oven to 400 degrees F (200 degrees C). Grease a casserole dish.
• Spoon potato mixture into the prepared casserole dish and sprinkle with shredded cheese. Garnish with remaining oregano and rosemary.
• Bake in the preheated oven until potatoes are fully cooked and the top is golden brown, 20 to 30 minutes.

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.

MUSHROOM AND LEEK GRATIN

Steps:

• Preheat oven to 375 degrees. In a large skillet, heat 2 tablespoons oil over medium-high. Working in batches if necessary, add mushrooms and cook, tossing occasionally, until softened, 10 to 15 minutes. Transfer to a paper-towel-lined plate.
• Wipe out skillet, return to heat, and add 2 tablespoons oil. Add leeks and season with salt and pepper. Cook, stirring frequently, until softened, 8 minutes. Add wine, and cook until almost evaporated, 2 to 3 minutes. Stir in cream, lemon juice, and thyme leaves.
• Transfer leek mixture to a 2-quart baking dish. Top with mushroom slices, overlapping slightly. Sprinkle with Parmesan and bake until edges are bubbling, 20 to 25 minutes. Serve warm.

LEEKS AU GRATIN

Steps:

• Quarter eggs lengthwise.
• Arrange in a single layer in broiler-safe 2 qt round dish.
• Set aside.
• Remove green portion from leeks, and halve lengthwise.
• Wash thoroughly, and pat dry.
• Remove the roots, and cut the leeks lengthwise into thin strips (julienne).
• Heat 4 tbs of the butter in a large skillet over medium heat, add leek strips.
• Cook leeks until tender, stirring occasionally.
• Spoon leeks over eggs in dish.
• Melt remaining 2 tbs butter in a skillet.
• Whisk in flour.
• Add milk, cook until thickened and bubbly.
• Whisk in 1/4 cup of the white cheddar cheese, the Parmesan cheese, and the cayenne pepper.
• Season to taste with salt and pepper.
• Pour the sauce over the leeks and eggs in dish.
• Sprinkle with remaining white cheddar cheese.
• Bake uncovered about 10 minutes in 450 oven, or until the edges are bubbly and the top begins to brown.

MUSHROOM, LEEK, AND ZUCCHINI GRATIN

Steps:

• Preheat the oven to 375 degrees F (190 degrees C). Lightly grease a 3-quart casserole dish.
• Heat 2 tablespoons oil in a large, nonstick skillet over medium heat. Add leeks and onion to the hot skillet and saute for 10 minutes. Add mushrooms and continue to saute until leeks and onion are tender, 6 to 8 more minutes.
• Meanwhile, cut zucchini, yellow squash, and Roma tomatoes into 1/4-inch slices.
• Transfer mushroom mixture to the prepared casserole dish and spread evenly over the bottom. Layer zucchini, yellow squash, and tomatoes on top of the onion mixture.
• Combine bread crumbs, Parmesan cheese, parsley, cashews, tarragon, salt, and pepper in a large mixing bowl. Sprinkle over the vegetables to cover.
• Bake in the preheated oven until gratin is dark brown all over, about 1 hour.

SPRING GREENS AND LEEK GRATIN

Steps:

• Preheat oven to 350°F. Melt butter in an ovenproof 10" skillet (such as cast iron) over medium-low heat. Add leeks and ramp bulbs and cook, stirring often, until leeks are softened, about 10 minutes. (Try to keep the leeks from browning.)
• Add ramp greens, arugula, and spinach in big handfuls, cooking and wilting one batch before adding the next. (At first it will look like all those greens will never fit in the skillet, but keep at it-you'll see!) When all greens are wilted (this may take 15-20 minutes), add coriander, salt, and cayenne. Cook, stirring, until spices are incorporated, about 1 minute. Add lemon zest, cream, and 1/2 cup Parmesan. Continue to cook, stirring, until cream has slightly reduced, about 2 minutes longer. Remove from heat.
• Toss bread with oil in a large bowl to coat. Arrange bread on top of vegetables, taking care not to cover the greens completely (you want them to peek through here and there). Sprinkle remaining 2 Tbsp. Parmesan over.
• Transfer to oven and bake gratin until bread is golden brown and crisp, cheese is melted, and cream is bubbling, 35-45 minutes. Let cool slightly before serving.

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.

CAULIFLOWER AND LEEK GRATIN

Steps:

• Preheat oven to 350 degrees. Butter a shallow 2-quart baking dish and set aside.
• Bring a large pot of salted water to a boil. Add cauliflower and cook until slightly tender, 2 to 3 minutes. Drain and rinse under cold water; transfer to a large bowl and set aside.
• Melt butter in a small saucepan over medium-low heat. Add leeks, shallots, red-pepper flakes, and thyme; cook, stirring, until softened, about 5 minutes. Stir in flour until well combined. Slowly add milk, stirring constantly, until well combined. Increase heat to medium-high and bring to a boil; let boil 2 to 3 minutes until thickened. Remove from heat and stir in 3/4 cups cheese; season with salt and pepper.
• Pour leek mixture over cauliflower mixture and stir until cauliflower is well coated; transfer to prepared baking dish. Sprinkle remaining 3/4 cup cheese over top. Transfer to oven and bake until bubbly, about 25 minutes.
• Meanwhile, preheat broiler. Transfer baking dish to broiler; broil until golden brown, 5 to 8 minutes. Let cool 5 to 10 minutes before serving.

LEEK AND TOMATO GRATIN

Steps:

• Heat the oven to 350. Trim the leeks of the hard green parts and outer skin, and wash them well. If they're fat, quarter them the long way. Chop the tomatoes and put them in a gratin dish long enough to hold the leeks but narrow enough so that everything is snug. Add the oil and nestle the leeks in there; sprinkle with salt and pepper.
• Bake, checking and stirring occasionally, until the tomatoes become saucy and the leeks are very, very tender, about an hour. If you like, sprinkle with Parmesan and raise the heat until the cheese melts and browns a bit. Otherwise, sprinkle with chopped parsley and serve hot or warm.

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:

• Place the broth in a large saucepan along with the seasonings (1 1/2 teaspoons thyme, garlic chips, salt and pepper).
• Trim off the dark green part of the leek. (Use for another purpose.) Take the white-light green portion and split in half lengthwise. Place that in a water bath and rinse well, changing water as needed in order to remove all dirt and sand from the leek. Once clean, slice the leek into thin half discs. Place into the pot of seasoned broth.
• Peel potatoes and slice very thin by hand or by using a mandoline or food processor. Slices should be less than 1/4 inch thick. Place potatoes in the saucepan.
• Preheat oven to 400 degrees.
• Heat contents of the saucepan to a boil over medium-high heat. Reduce flame to a simmer and cook until the potatoes are tooth tender - you can bite'em but they still have some resistance - about 5 minutes.
• Place the contents of the saucepan into 6 individual gratin dishes, ramekins or custard cups. Press down to level the tops. (should your mixture only partially fill the dishes, add a mixture of water and additional broth so that the tops of the contents is within a half inch of the lip of the dish.) Garnish with the remaining thyme.
• Set the dishes on a baking sheet and bake for 30 minutes. Check for potatoes for doneness. Apply a *very* quick application of cooking spray to the tops to aide crispness. Cook an additional 10 minutes or until the potatoes are done and the tops are a crispy golden brown.
• For Vegetarian do not use the Chicken Broth option.