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1
Make the sauce In a small saucepan, bring the milk to a simmer.
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2
In a medium saucepan, melt the butter.
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3
Add the flour and whisk over moderate heat for 1 minute.
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4
Gradually whisk in the hot milk and bring to a boil.
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5
Cook, whisking, until thickened, about 5 minutes.
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6
Remove the pan from the heat and whisk in both cheeses until melted.
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7
Stir in the nutmeg and hot sauce and season with salt and pepper.
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8
Make the sandwiches Preheat the oven to 425.
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9
Arrange the bacon on a rack set over a baking sheet.
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10
Cook until golden and crisp, about 30 minutes.
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11
Preheat the broiler.
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12
Arrange the tomato slices on a baking sheet, drizzle with the oil and season with salt and pepper.
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13
Broil 6 inches from the heat until lightly charred, 1 to 2 minutes per side; keep warm.
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14
Arrange the bread on a foil-lined baking sheet and spread each slice with 1/2 tablespoon of the butter; season with salt and pepper.
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15
Broil until lightly toasted, about 2 minutes.
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16
Flip the bread and toast for 1 minute.
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17
Top each toast with some turkey and a slice of tomato.
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18
Spoon the sauce on top and sprinkle on both cheeses.
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19
Broil until the cheese is melted and golden brown, 2 to 3 minutes.
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20
Transfer the sandwiches to plates and top with the bacon.
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21
Garnish with chopped chives and parsley and serve hot.