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" Ingredients B\u00E9chamel Sauce \u2022 3 T unsalted butter \u2022 \u00BC cup all-purpose flour \u2022 3 cups whole milk \u2022 Pinch of freshly grated nutmeg \u2022 Salt and freshly ground white pepper Sandwiches \u2022 8 slices high-quality Pullman loaf bread, sliced ?- to \u00BD-inch thick \u2022 12 oz. thinly sliced jambon de Paris (high-quality wet-cured ham) \u2022 10 oz. Gruy\u00E8re cheese, coarsely grated \u2022 4 whole eggs (for the madame) Directions In a small saucepan over low heat, melt butter and whisk in the flour until blended but not colored. Gradually whisk in the milk and cook, stirring constantly, until thickened, about 10 minutes. Season to taste with nutmeg, salt, and pepper. Set aside. (This may be made up to 24 hours ahead and refrigerated with a layer of plastic wrap placed directly on the surface; gently reheat before serving.)  Preheat oven to 400\u00B0F. Place bread slices in a single layer and spread each evenly to the edges with b\u00E9chamel (all the b\u00E9chamel may not be needed). Divide ham among four of the slices, trimming if necessary so it is within \u00BC inch of the edges. Top all eight slices with equal amounts of grated cheese, spreading evenly to within \u00BC inch of the edges.  Place the four bread slices with b\u00E9chamel and Gruy\u00E8re, cheese side up, on top of slices layered with ham. Transfer sandwiches to a sheet pan lined with parchment paper. Bake until cheese topping is melted and golden brown, 10 to 15 minutes.  To make a croque-madame, fry eggs sunny-side up and place one on top of each finished sandwich. Sprinkle with salt and pepper and serve immediately. Serves 4. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.elledecor.com/life-culture/food-drink/a2450/croque-monsieur-or-madame-recipe-a-63046/>