Ingredients
- 5 tablespoons unsalted butter, softened
- 1 tablespoon all-purpose flour
- 2/3 cup whole milk
- Coarse salt and freshly ground pepper
- 8 slices white Pullman bread, or thinly sliced sandwich bread
- 2 tablespoons Dijon mustard
- 5 ounces smoked salmon
- 1/4 cup small dill sprigs, plus more for garnish
- 2 cups grated Comte cheese
- 4 large eggs
Directions
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Make the bechamel sauce: Melt 1 tablespoon butter in a wide medium saucepan over medium-high heat. Whisk in flour; cook, whisking, 30 seconds. Gradually whisk in milk; cook, whisking, until mixture comes to a boil and has thickened, about 2 minutes. Remove from heat. Season with salt and pepper.
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Using remaining 4 tablespoons butter, butter 1 side of each piece of bread. Set aside 4 slices. Spread unbuttered sides of remaining 4 slices with mustard; top with salmon. Scatter dill over salmon. Top each with 1/4 cup cheese. Sandwich with remaining bread, buttered side up.
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Preheat broiler. Heat a large nonstick skillet over medium-low heat. Add sandwiches; cook, turning once, until golden brown, about 2 minutes per side. Spread 2 tablespoons reserved bechamel sauce on top of each sandwich; sprinkle each with 1/4 cup remaining cheese. Broil until cheese is bubbling and golden brown.
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Meanwhile, heat a large nonstick skillet over medium heat. Crack eggs into skillet. Cover, and cook until whites are set but yolks are still soft, about 2 minutes. Season with salt and pepper. Place 1 egg on top of each sandwich, and serve.
