Croque madame

4
45 minutes

Ingredients

Gruyère and Parmesan béchamel

  • 30g of butter
  • 30g of plain flour, (2 tbsp)
  • 200ml of whole milk
  • nutmeg
  • 20g of Parmesan, finely grated
  • 40g of Gruyère, finely grated

Croque madame sandwich

  • 8 slices of sourdough bread
  • 4 tbsp of Dijon mustard
  • 8 slices of ham, French, baked
  • 180g of Gruyère, finely grated
  • 4 eggs
  • truffle salt, for the eggs

Method

1
To begin, make the béchamel. In a small saucepan, melt the butter over medium heat, add the flour and cook, stirring frequently, for a few minutes. Add the milk and whisk until smooth and starting to thicken
2
Continue cooking for a couple of minutes, stirring frequently, until very thick and starting to pull away from the sides of the pan. Scrape in the nutmeg, stir in the cheeses until melted and set aside while you prepare the rest of the sandwich
3
Making 4 sandwiches, layer 1 slice of sourdough, 1 tablespoon Dijon mustard, 2 slices of ham, 25g of the grated Gruyère and top with another slice of bread
4
Heat the butter in a large, heavy frying pan over medium heat. When the butter stops foaming, add the sandwiches, reduce the heat to medium-low and cover. Cook the sandwiches on both sides until golden brown and the cheeses have melted, about 2 minutes on each side
5
While the sandwiches are cooking, heat the grill. Divide the béchamel between the 4 sandwiches, spreading it over one of the toasted sides. Sprinkle over the last of the Gruyère and grill under very bubbly and lightly browned
6
While the sandwiches are grilling, fry the eggs – use the frying pan you made the sandwiches in, there might even be a little browned butter left in the pan from cooking the eggs. If not, add a little more butter or oil. Heat the pan to medium hot, add the eggs, cover and turn off the heat
7
Leave the eggs to gently steam-fry in the residual heat. The eggs are done when the top of the white is cooked, but the yolk is still very runny – about 2 minutes. Sprinkle the yolks with truffle salt and serve atop the sandwiches