Croque Monsieur Classique finished dish
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Croque Monsieur Classique

Make Croque Monsieur Classique, a French lunch recipe with unsalted butter, all-purpose flour, whole milk, warmed. It has about 25 min, about 620 calories per serving. Get ingredients, step-by-step instructions, nutrition estimates, FAQs, and Recipe Genius app tools.

FrenchLunch25 min2 servings620 cal/serving
sandwichcomfort foodcheeseeasyclassicfrenchlunchunsalted butter

Quick answer

Croque Monsieur Classique is a French lunch recipe that takes about 25 min, makes 2 servings, has about 620 calories per serving. Use the ingredients and steps below, or open it in Recipe Genius for guided Cook Mode, timers, serving changes, and a shopping list.

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Croque Monsieur Classique ingredients

  • 2 tbsp unsalted butter
  • 2 tbsp all-purpose flour
  • 1 cup whole milk, warmed
  • 1 tsp Dijon mustard
  • 0.25 tsp nutmeg, grated
  • 0.25 tsp salt
  • 0.125 tsp black pepper
  • 4 slices sourdough or brioche bread, sliced
  • 1.5 cups Gruyère cheese, grated
  • 4 slices cooked ham, thinly sliced
  • 1 tbsp unsalted butter, softened (for bread)

How to make Croque Monsieur Classique

  1. Preheat your oven to 400°F (200°C). For the béchamel sauce, melt 2 tbsp unsalted butter in a small saucepan over medium heat.
  2. Add 2 tbsp all-purpose flour to the melted butter and whisk constantly for 1-2 minutes to create a smooth roux, cooking out the raw flour taste.
  3. Gradually whisk in 1 cup warmed whole milk, a little at a time, until the sauce is smooth and thick. Continue to cook for 2-3 minutes, stirring, until it coats the back of a spoon. Remove from heat.
  4. Stir 1 tsp Dijon mustard, 0.25 tsp grated nutmeg, 0.25 tsp salt, and 0.125 tsp black pepper into the béchamel sauce. Set aside.
  5. Lightly butter one side of each of the 4 slices of sourdough or brioche bread with 1 tbsp softened unsalted butter.
  6. Flip the bread slices over. Spread a generous layer of béchamel sauce on the unbuttered side of two bread slices. Top each with 0.5 cup grated Gruyère cheese and 2 slices of cooked ham.
  7. Place the remaining two bread slices on top, unbuttered side down. Spread another generous layer of béchamel sauce over the top of each sandwich, then sprinkle generously with the remaining 0.5 cup grated Gruyère cheese.
  8. Place the sandwiches on a baking sheet. Bake for 10-15 minutes, or until the cheese is melted and bubbly and the bread is golden brown. For an extra crispy top, you can broil for the last 1-2 minutes, watching carefully to prevent burning.
  9. Let the Croque Monsieur rest for a minute or two before serving hot. Serve immediately as a decadent and satisfying French lunch.

Croque Monsieur Classique FAQ

How do I make Croque Monsieur Classique?

Make Croque Monsieur Classique by gathering the ingredients below, following the step-by-step instructions, and checking that everything is cooked safely before serving.

What ingredients are in Croque Monsieur Classique?

The main ingredients include unsalted butter, all-purpose flour, whole milk, warmed, Dijon mustard, nutmeg, grated. The full ingredient list is included on this page.

How long does Croque Monsieur Classique take?

This recipe takes about 25 min, depending on prep speed and kitchen equipment.

How many calories are in Croque Monsieur Classique?

Recipe Genius estimates about 620 calories per serving. Nutrition is estimated, so use your own labels when precision matters.

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