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["For the leek and cream stew:
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Wash the leeks carefully in cool water to remove any grit, then chop them finely. Saute the leeks and chopped garlic in butter over low heat for about 10 minutes until the leeks are softened and tender. Add the cup of cream and simmer until cream has bubbled up and started to thicken, about 5 minutes. Add lemon juice, salt and pepper to taste and set aside.", "For the mushrooms:
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Rinse mushrooms. If using portobellas, separate the stems from the caps and discard the stems. Slice the mushrooms 1/4-inch thick. Heat 4 tablespoons of butter in a large saute pan. When the butter starts to sizzle, add half the mushrooms, sprinkle with salt, and cook over medium heat for about 5 minutes, until the mushrooms are tender and they release some of their juices. If they become too dry, add a little more butter. Toss occasionally to make sure the mushrooms cook evenly. Repeat with the remaining mushrooms and set all the mushrooms aside. (Cooking half the mushrooms at a time keeps them from stewing instead of sauteing.)", "For the bechamel:
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Melt the remaining 4 tablespoons of butter in a medium saucepan over medium-high heat. Add the flour and whisk until smooth. Cook, stirring constantly, for one minute. Gradually whisk in the light cream; cook, stirring constantly, until smooth and thickened. Stir in the Parmesan cheese and season with the nutmeg, salt and pepper. In a small bowl, gradually stir 1/2 cup of the sauce into the beaten eggs so as to warm the eggs slowly and prevent them from scrambling, then stir the egg mixture into the remaining sauce. Cook a couple of minutes longer, stirring constantly, then remove from heat.", "Building the lasagna:
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Put a little bechamel in the bottom of a large baking or lasagna pan, then layer with noodles, leek stew, mushrooms, mozarella, bechamel sauce, and start again with more noodles. Continue until you've used up ingredients, top with noodles, bechamel and a little grated Parmesan. (Or layer in whatever order strikes your fancy, I don't think it matters much!)", "Bake at 350 for about 1 hour, until hot, bubbly and lightly browned. You can also refrigerate the lasagna a few hours ahead until you are ready to bake it.", "***Note: You could skip making the leek stew, and simply saute the leeks and garlic in the butter you are going to use to make the bechamel. You can also use black pepper instead of white in the bechamel, if you don't mind the specks showing."]