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A Croque Madame sandwich topped with a sunny-side-up egg and chopped chives, filled with ham and melted cheese, served on a white plate with a side salad.
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Bistro-Style Croque Monsieur / Croque Madame

Nobody does a ham and cheese sandwich quite like the French! A classic bistro staple, the croque monsieur layers thin slices of Parisian ham, melty Gruyère, and silky béchamel on crisp, toasted slices of bread. Add a fried egg for a croque madame!
Prep15 minutes
Cook15 minutes
Total30 minutes
Course: Dinner, Lunch
Cuisine: French
Keyword: chef-tested sandwich, elevated French recipe, elevated sandwich recipe, French bistro recipe, ham and cheese sandwich, homemade béchamel recipe
Servings: 2 large sandwiches
Calories: 1100kcal
Author: Ari Laing

Ingredients

For the Béchamel

  • 3 Tbsp (42g) unsalted butter
  • 3 Tbsp (23g) all-purpose flour
  • 2 cups (473ml) milk
  • ½ tsp kosher salt
  • ¼ tsp freshly ground black pepper
  • Pinch of ground nutmeg

For the Sandwich

  • Unsalted butter
  • 4 slices of pain de mie or another soft, enriched white sandwich bread – about ½-¾ inch thick
  • Whole grain or Dijon mustard, about 2-3 Tbsp
  • ¾ cup (75g) Gruyère or Comte cheese, shredded
  • ¼ - ⅓ lb Parisian ham, thinly sliced (but not too thin)

To Make Croque Madame

  • 1 Tbsp unsalted butter
  • 2 large eggs
  • Fresh chives, thinly sliced, or chopped fresh parsley
  • Any light crisp salad (even just arugula or spring greens tossed with olive oil) to serve on the side

Instructions

  • Preheat the oven. Heat your oven to 375°F (190°C). Line a rimmed baking sheet with parchment.
  • Make the béchamel. Melt 3 Tbsp unsalted butter in a saucepan over medium heat. Once melted, whisk in 3 Tbsp flour then continue to cook for 1-2 minutes, until the flour is a light golden brown. Slowly pour in 2 cups of milk, whisking the entire time. Continue cooking until the sauce is rich, thick, and creamy, about 3 minutes. Season with ½ tsp kosher salt, ¼ tsp black pepper, and a pinch of ground nutmeg. The béchamel should be spoonable, not thick or gluey.
  • Toast the bread. Lightly toast all bread in a toaster oven (or regular oven). No need to add butter.
  • Assemble the sandwiches. Working on a cutting board, spread soft butter on the outside of each slice, then flip over. Next, spread a thin layer of whole grain mustard on the inside of two slices, followed by a thin layer of béchamel. Top each with a light layer of shredded Gruyère, a folded slice or two of Parisian ham (don’t fold flat), and then a bit more Gruyère. Spread a little béchamel on the inside of the remaining two slices, then fold over onto the assembled sandwiches. Spread another thin layer of béchamel on top, finish with a generous sprinkle of Gruyère, then transfer to the prepared baking sheet.
  • Bake first. Bake the sandwiches for 10-12 minutes, or until the cheese has heated through and begun melting.
  • Broil to melt the top. Set the broiler to high. Carefully move the oven rack as close as it’ll go towards the heating unit. Broil the sandwiches for 1-2 minutes, until golden brown and bubbling. Keep a close eye on them so they don’t burn.
  • To make a Croque Madame: While the sandwiches are broiling, make two fried eggs (either sunny-side-up or over easy, based on your preference), then slide one on top of each sandwich just before serving. The yolk should be just runny enough to act like a sauce. Top with thinly sliced chives or chopped fresh parsley.
  • To serve: Either way, because this sandwich is so rich, the preferred way to enjoy it is with a light, refreshing salad on the side. Enjoy!

Notes

  • If you can’t find Paris-style ham, use English ham or a high-quality deli ham. It’s worth looking for the real thing, though! As far as quantity, you can use as much or as little as you like. I’d say 2-3oz per sandwich is standard (my husband likes more, I like a little less). Places I’ve seen Parisian ham available at the deli counter: Whole Foods, Wegmans, Kings, Acme, and ShopRite.
  • The nutrition facts are a little aggressive because they assume you use the entire batch of béchamel. This is obviously not necessary and you should use as much or as little as you like!

Nutrition

Serving: 1sandwich with egg | Calories: 1100kcal | Carbohydrates: 46g | Protein: 59g | Fat: 75g | Saturated Fat: 41g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 23g | Trans Fat: 1g | Cholesterol: 408mg | Sodium: 2293mg | Potassium: 750mg | Fiber: 2g | Sugar: 15g | Vitamin A: 2208IU | Calcium: 1343mg | Iron: 4mg
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