Croque Madame French Bistro Sandwich (Printer-friendly)

Crispy French sandwich stacked with ham, cheese, béchamel, and a golden fried egg.

# What You Need:

→ Sandwich Components

01 - 4 slices good-quality white sandwich bread
02 - 2 teaspoons unsalted butter, softened
03 - 4 slices cooked ham (approximately 3 ounces)
04 - 4 slices Gruyère or Emmental cheese (approximately 3 ounces)

→ Béchamel Sauce

05 - 1 tablespoon unsalted butter
06 - 1 tablespoon all-purpose flour
07 - 3/4 cup whole milk
08 - Pinch of ground nutmeg
09 - Salt and black pepper to taste
10 - 1/2 ounce grated Gruyère cheese (optional)

→ Topping

11 - 2 large eggs
12 - 1 teaspoon unsalted butter

# How to Make It:

01 - Preheat your oven to 400°F for optimal baking temperature.
02 - Melt 1 tablespoon butter in a small saucepan over medium heat. Stir in flour and cook for 1 minute to form a roux. Gradually whisk in milk until smooth, then simmer for 2-3 minutes while stirring constantly until thickened. Season with salt, pepper, and nutmeg. Stir in grated Gruyère if using, then remove from heat.
03 - Lightly butter one side of each bread slice. Place two slices butter-side down on a parchment-lined baking sheet. Layer each with 2 ham slices and 2 cheese slices.
04 - Spread 1-2 tablespoons béchamel sauce over the ham and cheese layers on each sandwich. Cover with remaining bread slices, buttered side facing up.
05 - Spoon remaining béchamel sauce over the top of each sandwich. Sprinkle with extra grated cheese if desired for enhanced flavor.
06 - Bake for 10-12 minutes until golden brown and bubbling. For extra browning, broil for 1-2 minutes at the end, watching carefully to prevent burning.
07 - While sandwiches bake, melt 1 teaspoon butter in a non-stick skillet over medium heat. Crack eggs into pan and fry until whites are just set but yolks remain runny for sunny-side-up preparation.
08 - Remove sandwiches from oven and transfer to serving plates. Top each sandwich with a fried egg and serve immediately while hot.

# Expert Tips:

01 -
  • The béchamel sauce transforms ordinary ham and cheese into something velvety and luxurious
  • That runny yolk creates its own sauce, making every bite impossibly rich and satisfying
  • You get restaurant quality results with ingredients you probably already have in your kitchen
02 -
  • The béchamel can be made ahead and refrigerated for up to 2 days, just reheat it gently with a splash of milk before using
  • Do not skip buttering the bread, even though it seems excessive, because this creates that essential crispy exterior
03 -
  • After béchamel coats the back of a spoon, you have reached perfect thickness
  • Letting the sandwiches rest for 2 minutes after baking helps the layers set slightly for easier eating

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