Leek And Spring Onion Gratin Recipes

LEEK AND SPRING ONION GRATIN

Steps:

• Place a rack in the top third of oven and heat to 400 degrees. In a medium bowl, toss scallions, green garlic, salt and pepper.
• Heat a 12-inch cast-iron skillet over medium heat. Arrange the leeks cut-side down in the skillet, then scatter spring onions in the gaps. Sprinkle a little more salt on top, then spread scallion mixture in an even layer in pan. Pour in 1/4 cup water and top with butter.
• Cover and and simmer on low heat until vegetables are soft, 20 to 25 minutes.
• Uncover the pan, turn heat to medium-high and cook until liquid is evaporated and edges are starting to brown and sizzle, 5 to 10 minutes longer.
• Meanwhile, in a small bowl, rub together anchovies, Parmesan, panko, thyme, lemon zest and red pepper flakes. Drizzle in oil and toss to combine.
• Sprinkle Gruyère evenly into skillet over leeks, pour in cream, then top with the bread crumb mixture. Drizzle with a little more oil. Transfer to oven and bake until golden and bubbly, 15 to 20 minutes. Cool slightly, then serve warm.

ONION GRATIN

Steps:

• Bring a pot of water to a boil and add salt. Preheat the oven to 400°F.
• Drop the onions into the water and leave them there for a minute. Peel them, then put them in a buttered ovenproof dish large enough to hold them in one layer. Sprinkle them with salt, pepper, and a little nutmeg, then pour the cream over all. Bake until the top is brown and the onions are soft, about 30 minutes.

FOUR-ONION GRATIN

Steps:

• Melt butter in heavy large skillet over medium heat.
• Add leeks, large onions, shallots and garlic and sauté until all are tender, about 20 minutes.
• Add baby onions and cook 10 minutes longer, stirring occasionally.
• Mix in 2 cups whipping cream.
• Boil until cream is thickened to sauce consistency, about 10 minutes.
• Transfer vegetable-cream mixture to 6-cup shallow baking dish.
• Preheat oven to 425°F.
• Sprinkle breadcrumbs over onion mixture.
• Bake until breadcrumbs are golden brown and onion mixture bubbles, about 20 minutes.
• Sprinkle with parsley.

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.

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.