Croque Madame

Croque Madame is a spectacular and decadent breakfast sandwich that is truly something to behold.

It’s a grilled cheese sandwich on major French steroids. And it is undeniably delicious.

Croque Madame sandwich in a cast iron skillet with egg on top

Whenever we start to feel sorry for ourselves because we’re not enjoying the sights, sounds and tastes of France, I whip up a batch of Croque Madame. That, and when we feel like being a little decadent.

Leave it to the French to take a pretty basic grilled cheese sandwich and elevate it to gastronomical heights.

It all starts with nice thick slices of bread….toasted to perfection.

Toasted bread for Croque Madame


Mornay Sauce is a delicious sauce made with cream and Gruyere cheese.

This is what helps to elevate this sandwich beyond your everyday grilled cheese with ham.

Mornay sauce poured onto a Croque Madame


It all comes together in this amazing breakfast sandwich, that is so filling and is wonderful anytime of the day or night.

We love the Croque Madame topped with a sunny side up egg.


A sunny side up egg in a skillet for a Croque Madame

This is the ultimate in brunch gooey, yummy, rich….deliciousness.

Croque Madame is classic French comfort food.


Croque Madame in a cast iron skillet

Croque Madame

This Croque Madam is French comfort food at it's best. The Gruyere cheese sauce, with Black Forest ham, thickly toasted bread, topped with a fried egg is pure French perfection. Perfect served with a nice, lightly dressed green salad. Amazing.
Course: Brunch
Cuisine: French
Keyword: Grilled Cheese, Gruyere, Mornay
Prep Time: 20 minutes
Cook Time: 10 minutes
Total Time: 30 minutes
Servings: 4 people
Calories: 488 kcal
Author: Kris Longwell


  • 4 tbsp unsalted butter
  • 2 tbsp all-purpose flour
  • 1 cup whole milk warmed
  • 1 cup Gruyere cheese shredded
  • 5 tsp Dijon mustard
  • Kosher salt and freshly ground black pepper
  • 4 large eggs
  • 8 slices good-quality white sandwich bread
  • 1/2 lb thinly sliced Black Forest ham



  1. In a small saucepan, melt 2 tablespoons of the butter over medium-low heat.
  2. Whisk in the flour until smooth and bring to a gentle bubbling without browning, whisking frequently, for 1 minute.
  3. Gradually whisk in the warm milk, raise the heat to medium, and bring to a gentle boil, whisking frequently.
  4. Reduce the heat to medium-low and simmer, whisking frequently, until thickened, about 5 minutes.
  5. Remove from the heat and stir in 3/4 cup of the cheese and 1 teaspoon of the mustard.
  6. Season with salt and pepper.
  7. Transfer to a bowl and cover with plastic wrap, set aside and let cool.


  1. Pre-heat the oven to 400 F.
  2. Line a rimmed baking sheet with parchment paper and arrange the bread slices in a single layer and bake, turning once, until toasted on both sides, about 10 minutes. Remove from oven and set aside.
  3. In a large frying pan, melt the remaining 2 tablespoons butter over medium heat.
  4. Crack the eggs into the pan, and season with salt and pepper, then cover and reduce the heat to medium-low. Cook until the whites have just set, about 2 minutes for sunny-side up eggs.


  1. Pre-heat the broiler.
  2. Spread 4 bread slices with the remaining 4 teaspoons mustard.
  3. Add an equal amount of the sliced ham and 1 tablespoon of the sauce to each slice.
  4. Top with the remaining bread slices.
  5. Return the sandwiches to the prepared baking sheet.
  6. Spread the remaining sauce over the tops of the sandwiches, and sprinkle each with 1 tablespoon of the remaining cheese.
  7. Broil until the cheese is melted and golden, about 2 minutes (keep an eye on them...don't let burn!).
  8. Transfer to individual plates, top each with a fried egg.  Serve at once.


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