Go Back
To make the perfect Croque Monsieur, you will need these tasty ingredients:

Croque Monsieur

Elevate your meal with a classic Croque Monsieur sandwich that’s bursting with flavor! This delightful recipe features layers of savory ham, mouthwatering Gruyère cheese, and a luscious béchamel sauce, all on crusty sourdough bread. Perfect for impressing guests or enjoying a cozy night in, follow our step-by-step guide to master this French favorite. Click now to explore the full recipe and add a gourmet touch to your kitchen!
Print Recipe Pin Recipe

Ingredients
  

8 slices of sourdough bread

4 slices of aged Gruyère cheese

4 slices of black truffle cheese (or any cheese with truffle flavor)

4 slices of cooked ham (preferably smoked)

4 tablespoons unsalted butter, softened

2 tablespoons all-purpose flour

1 cup whole milk

1 teaspoon Dijon mustard

½ teaspoon garlic powder

Freshly grated nutmeg (pinch)

Salt and pepper to taste

Fresh arugula for serving (optional)

Instructions
 

Prepare the Béchamel Sauce: In a saucepan over medium heat, melt 2 tablespoons of butter. Once melted, whisk in the flour to form a roux, stirring for about 2 minutes until it turns a light golden color.

    Slowly pour in the milk while whisking constantly to avoid lumps. Continue to cook until the sauce thickens, about 3-5 minutes.

      Stir in Dijon mustard, garlic powder, nutmeg, and season with salt and pepper. Remove from heat and set aside.

        Assemble the Sandwiches: Spread 1 tablespoon of softened butter on one side of each slice of bread. On the unbuttered side, layer a slice of Gruyère cheese, a slice of ham, a slice of black truffle cheese, and top with another slice of bread. Press down gently.

          In a large skillet over medium heat, place the sandwich butter side down. Cook until golden brown, about 2-3 minutes, then flip and cook the other side until golden.

            Add Béchamel Topping: Once both sides are golden, transfer the sandwiches to a baking sheet. Spoon the prepared béchamel sauce generously over the top of each sandwich, followed by a sprinkle of additional Gruyère cheese.

              Place under a broiler for about 5 minutes until the cheese is bubbly and golden brown. Keep a close watch to prevent burning.

                Serve: Remove from the oven, let it cool for a minute, then slice in half to reveal the cheesy layers. Serve immediately with a side of fresh arugula for a pop of color and freshness.

                  Prep Time: 15 minutes | Total Time: 30 minutes | Servings: 4

                    - Presentation Tips: Serve the Croque Monsieur halved on a rustic wooden board, garnished with arugula and a light drizzle of olive oil for added flavor.