INGREDIENTS
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1 pound penne pasta
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2 tablespoons unsalted butter, plus 1 tablespoon
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1 tablespoon olive oil
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3 leeks, thinly sliced
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Bechamel Sauce, recipe follows
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1/2 cup Gorgonzola, crumbled
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1/4 cup grated Asiago
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1 tablespoon chopped fresh thyme leaves
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1 tablespoon chopped fresh oregano leaves
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1 tablespoon chopped fresh Italian parsley leaves
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Kosher salt and freshly ground black pepper
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Special equipment: 9-inch springform pan
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1/4 cup unsalted butter
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1 clove garlic, smashed
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1/4 cup all-purpose flour
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3 cups milk
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1/4 cup grated Parmesan
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1/4 teaspoon kosher salt
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Pinch freshly ground nutmeg