INGREDIENTS
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8 ounces uncooked penne pasta
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5 tablespoons plus 1 teaspoon butter, divided
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3 tablespoons finely diced sweet onion
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1 tablespoon chopped fresh thyme
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1/8 teaspoon chopped saffron threads
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1/4 cup all-purpose flour
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2 1/2 cups whole milk
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12 ounces uncooked lobster tail meat, cut into bite-size pieces
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1 tablespoon sherry
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1 teaspoon lemon zest
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3/4 teaspoon kosher salt
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1/2 teaspoon white pepper
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1 cup (4 ounces) grated Gruyère cheese
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1 cup (4 ounces) grated white Cheddar cheese
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3/4 cup panko
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2 tablespoons chopped fresh chervil