"Croque Madame is a delectable toasted sandwich filled with ham, creamy Mornay sauce and topped with a sunny side up egg. This is a must try for all egg sandwich lovers...."
INGREDIENTS
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2 tablespoons butter
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2 tablespoons flour
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1 1/4 cups milk warmed
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3/4 cup shredded gruyere cheese
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1/4 cup grated Parmesan cheese
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Salt & pepper to taste
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8 slices bakery quality white bread
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4 teaspoons Dijon mustard
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8 thin slices deli style ham
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4 large eggs