Croque Monsieur
- 15m Prep Time
- 25m Cook Time
- 40m Ready In
A classic French ham and cheese sandwich with a creamy Mornay sauce, baked until bubbly and golden brown.
Ingredients
- 8 hearty white sandwich bread
- 4 tbsp unsalted butter melted
- 3/4 lbs thinly sliced Black Forest deli ham
- 1/4 cup grated Parmesan cheese
- 1/4 lbs Gruyère cheese shredded
- 2 tbsp unsalted butter
- 2 tbsp all-purpose flour
- 1 cup whole milk
- 1/4 lbs Gruyère cheese shredded
- 1/4 cup grated Parmesan cheese
- 1/2 tsp salt
- 1/4 tsp pepper
- ground nutmeg
Nutrition (per serving, estimated)
Estimated based off 11 of 13 identified ingredients (per 100 g food data, scaled by amount).
Vitamins & minerals
- Calcium: 261 mg
- Iron: 2.9 mg
- Magnesium: 41.4 mg
- Phosphorus: 412 mg
- Potassium: 606 mg
- Zinc: 2.53 mg
Let's Prepare
Collect
Gather these ingredients — no prep needed yet.
- 8 hearty white sandwich bread
- 3/4 lbs thinly sliced Black Forest deli ham
- 1/4 cup grated Parmesan cheese
- 2 tbsp unsalted butter
- 2 tbsp all-purpose flour
- 1 cup whole milk
- 1/4 cup grated Parmesan cheese
- 1/2 tsp salt
- 1/4 tsp pepper
- ground nutmeg
Prepare
- Melt 4 tbsp unsalted butter
- Shred 1/4 lbs Gruyère cheese
- Shred 1/4 lbs Gruyère cheese
Let's Cook
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Step 1.
Adjust oven rack 6 inches from broiler element and heat oven to 375 degrees.
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Step 2.
Line rimmed baking sheet with aluminum foil and spray with vegetable oil spray.
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Step 3.
Brush bread on both sides with melted butter and place on prepared sheet.
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Step 4.
Bake until light golden brown on top, about 10 minutes.
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Step 5.
Remove sheet from oven and flip slices. Return to oven and bake until golden brown on second side, about 3 minutes.
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Step 6.
Reserve 4 slices for sandwich tops; evenly space remaining 4 slices on sheet.
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Step 7.
Melt butter in small saucepan over medium heat.
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Step 8.
Whisk in flour and cook for 1 minute.
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Step 9.
Slowly whisk in milk and bring to boil.
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Step 10.
Once boiling, remove from heat and quickly whisk in Gruyère, Parmesan, salt, pepper, and nutmeg until smooth.
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Step 11.
Spread 1 tablespoon Mornay on each slice of toast on sheet.
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Step 12.
Fold ham slices over themselves multiple times so they bunch up, divide ham evenly among slices of toast.
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Step 13.
Spread 2 tablespoons Mornay on 1 side of each reserved slice of toast and place slices Mornay side down on top of ham.
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Step 14.
Spread 2 tablespoons Mornay evenly over top of each sandwich, making sure to completely cover toast, including edges.
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Step 15.
Sprinkle sandwiches with Parmesan, followed by Gruyère.
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Step 16.
Bake until cheese on top of sandwiches is melted, about 5 minutes.
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Step 17.
Turn on broiler and broil until cheese bubbles across tops of sandwiches and edges are spotty brown, about 5 minutes.
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Step 18.
Serve.