INGREDIENTS
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3 tbsp. butter
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4 1/2 tsp. all-purpose flour
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1 1/2 cups whole milk
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3/4 cup shredded Swiss cheese (about 3 ounces)
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1/2 cup shredded Parmesan cheese
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6 eggs
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1 tsp. vegetable oil
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1 pkg. (10 ounces) Pepperidge Farm® Puff Pastry Shells, prepared according to package directions
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2 tbsp. chopped fresh chives