CitiGrove
The CitiGrove House · Small good things, in season, all year
Lunch · French · 15 min

Croque Monsieur with Gruyère-Mornay Sauce

Croque Monsieur with Gruyère-Mornay Sauce
Calories
611
Protein
41g
Carbs
59g
Fat
23g
Ingredients
  • 64.6 g sourdough bread
  • 145.8 g Jambon de Paris ham
  • 9 g Gruyère cheese
  • 9.4 g Dijon mustard
  • 6.7 g unsalted butter
  • 1 tsp all-purpose flour
  • 2 tbsp whole milk
  • 94.5 g spinach
  • 1 tsp olive oil
  • 69.3 g apple
Method
  1. 01Preheat the oven broiler to high.
  2. 02In a small saucepan over medium-low heat, melt half of the butter (3.5 g). Whisk in the all-purpose flour and cook for 1 minute to make a roux. Slowly whisk in the whole milk and cook until thickened into a béchamel sauce. Stir in 15 g of grated Gruyère cheese until melted into a smooth Mornay sauce. Season lightly with salt.
  3. 03Melt the remaining butter (3.5 g) in a pan and lightly toast the sourdough bread slices on both sides.
  4. 04Spread Dijon mustard on the interior surfaces of both bread slices.
  5. 05Layer the Jambon de Paris ham and half of the remaining grated Gruyère (approx. 15 g) onto one slice of bread, then close the sandwich.
  6. 06Place the assembled sandwich on a baking sheet, pour the prepared Mornay sauce over the top, and sprinkle with the final portion of grated Gruyère cheese.
  7. 07Broil for 3–4 minutes until the cheese sauce is bubbly and browned.
  8. 08Heat olive oil in a skillet over medium heat. Sauté the fresh spinach leaves for 1–2 minutes until just wilted, then season with a pinch of salt.
  9. 09Plate the hot Croque Monsieur alongside the sautéed spinach and crisp apple slices. Serve immediately.

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