Classic Croque Monsieur

Classic Croque Monsieur

Classic
serves 4

Croque Monsieur is a French bistro classic: crisp toasted bread layered with ham and Gruyère, then topped with a rich béchamel.

This version bakes until golden and bubbling, making it an easy but indulgent lunch or light supper.

15 mins prep15 mins cook30 mins total
  1. Preheat the oven to 200°C (180°C fan) or gas mark 6.

  2. Melt butter in a saucepan over medium heat. Add flour and whisk for 1–2 minutes to form a roux.

  3. Gradually whisk in warm milk until smooth and thickened. Season with salt, black pepper and a pinch of nutmeg.

  4. Remove from heat and stir in 50 g grated Gruyère until melted into the sauce.

  5. Arrange 4 bread slices on a tray and spread each with Dijon mustard.

  6. Top with sliced ham and 100 g grated Gruyère, then close with the remaining bread slices.

  7. Spread a little béchamel over each sandwich top and bake for 10–15 minutes until golden and bubbling.

  8. Serve hot, ideally with a crisp green salad.