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Croque Monsieur (Grilled Cheese Sandwich)

With a distinctly French name that translates as “gentleman crunch,” it is hardly surprising that the croque monsieur rose to prominence as a quick bar snack for the wealthy. Often considered the original fancy grilled cheese sandwich, the croque monsieur can either be pan-fried or broiled to achieve a full melt on the cheese and the namesake crunch in the bread. Tales about its origin include waitstaff leaving a sandwich on a hot radiator and accidentally melting the cheese before serving it to a very impressed customer. Though rich and comforting, this dish exhibits all the minimalism of French cuisine with its deliciously simple flavor combinations and no-frills presentation.

Recipe Servings: 2

Prep Time
5 minutes
Cook Time
20 minutes
Total Time
25 minutes
Vegetarian
Vegan
Gluten Free
Dairy Free
Kosher
Halal

Ingredients

Béchamel Sauce:
  • 2 Tbsp (30 g) butter
  • 2 Tbsp (16 g) pall-purpose flour
  • 1 cup (240 ml) whole milk
  • 1 tsp ground nutmeg
  • 1 bay leaf
  • Salt, to taste
  • Ground black pepper, to taste
Sandwiches:
  • 4 slices firm white sandwich bread
  • 4 oz (115 g) thinly sliced ham
  • 4 oz (115 g) sliced Gruyère cheese
  • 1 Tbsp (15 g) melted butter
  • ¼ cup (30 g) grated Gruyère cheese

Directions

    For Béchamel Sauce:
  1. Melt butter in a saucepan.
  2. Add flour and stir until the mixture begins to thicken.
  3. Whisk in milk gradually.
  4. Add nutmeg and bay leaf.
  5. Bring sauce to a boil and whisk constantly until it thickens.
  6. Season sauce with salt and black pepper and set aside.
  7. For Sandwiches:
  8. Place two pieces of bread on a hot broiler.
  9. Alternate layers of sliced ham with Gruyère cheese on top of the bread.
  10. Top sandwiches with remaining two slices of bread.
  11. Smear both sides of the sandwich with melted butter and place them into a hot frying pan set over medium heat.
  12. Cook sandwich until each side is golden brown.
  13. Line a baking sheet with parchment paper and move the sandwiches onto it.
  14. Spoon béchamel sauce over the sandwiches and sprinkle them with grated cheese.
  15. Broil the sandwiches until the cheese melts.
  16. Serve hot.

Notes

When the sandwich is topped with a fried egg, it is known as a croque madame. Other common variations include the croque poulet, with chicken filling, and the croque provençal, made with tomato.