""In Marche, we only make lasagna for special occasions like Christmas," Fabio Trabocchi says. For this streamlined version of his luxe lasagna in bianco (white lasagna), he layers flat noodles with a supremely rich sauce, along with a root-vegetable ragù, fresh mozzarella and whole basil leaves...."
INGREDIENTS
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1 cup dried porcini mushrooms
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2 cups boiling water
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4 tablespoons unsalted butter
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1/4 cup extra-virgin olive oil
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3/4 pound white mushrooms, thinly sliced (4 cups)
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Salt and freshly ground white pepper
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1/4 pound thickly sliced prosciutto di Parma, cut into 1/4-inch dice
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2 medium shallots, finely chopped
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1 fresh bay leaf
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2 rosemary sprigs
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2 sage sprigs
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2 thyme sprigs
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1 pound celery root, peeled and finely diced (1 1/2 cups)
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3 medium leeks, white and tender green parts only, finely chopped (3 cups)
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1/2 cup dry Marsala
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4 cups chicken stock or low-sodium broth
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2 1/2 cups heavy cream
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1 3/4 cups freshly grated Parmigiano-Reggiano cheese
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2 large eggs
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1 1/2 pounds lasagna noodles
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1 1/2 pounds fresh mozzarella, thinly sliced
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1 cup basil leaves