Classic Croque Monsieur Sandwich

Follow our step-by-step guide on how to make Classic Croque Monsieur Sandwich.

1. Step 1

   Start by preheating your oven to a cozy 400°F (200°C) and line a baking sheet with parchment paper to make cleanup a breeze.

2. Step 2

   Next, grab a microwave-safe container and combine the milk and heavy cream.

3. Step 3

   Pop it in the microwave for about 90 seconds, just until it’s warm to the touch—this will help create a creamy béchamel sauce.

4. Step 4

   While that’s warming up, melt some butter in a small saucepan over medium heat.

5. Step 5

   Once it’s melted, stir in the flour and let it cook for about 2 minutes until it’s bubbly and well blended.

6. Step 6

   Now, gradually whisk in your warmed milk and cream mixture, stirring continuously until the sauce thickens and starts to bubble—this should take about 3 to 5 minutes.

7. Step 7

   When it’s ready, remove it from the heat and season it with a pinch of salt, pepper, and a dash of nutmeg for that extra flavor kick.

8. Step 8

   Set this delicious sauce aside for now.

9. Step 9

   In a large skillet, melt a tablespoon of butter over medium heat.

10. Step 10

    Take four slices of bread and brown one side for about 4 minutes.

11. Step 11

    Once they’re golden and toasty, place them browned side down on your prepared baking sheet.

12. Step 12

    Now, it’s time to spread a generous layer of that creamy béchamel sauce on each slice of bread, making sure to cover every inch.

13. Step 13

    Next, layer on two slices of deli ham and sprinkle with half a cup of grated Gruyère cheese.

14. Step 14

    Top it off with the remaining slices of bread, and don’t forget to slather more béchamel sauce on top, ensuring it’s edge to edge for maximum flavor.

15. Step 15

    For the finishing touch, sprinkle the tops of your sandwiches with two tablespoons of grated Gruyère cheese and two tablespoons of grated Parmesan cheese.

16. Step 16

    Now, slide the baking sheet into your preheated oven and let it bake for 5 to 7 minutes, or until the cheese is beautifully melted and bubbly.

17. Step 17

    For that perfect golden finish, turn on the oven’s broiler and move the baking sheet about 6 inches from the heat source.

18. Step 18

    Broil the sandwiches for 2 to 3 minutes, keeping a close eye on them to prevent burning.

19. Step 19

    Once they’re golden brown and irresistible, take them out and let them cool slightly.

20. Step 20

    Finally, cut the sandwiches in half, serve them warm, and enjoy every cheesy, delicious bite!.