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Ham and Gruyère Croque Monsieur
AI-generated image
Ready in 25 min10 prep · 15 cookFrenchMediumLunchComfortPork

Ham and Gruyère Croque Monsieur

A classic French toasted sandwich layered with ham, nutty Gruyère, and a creamy, bubbling bechamel sauce.

Riff Kitchen

Recipe Author

Riff Kitchen@riffkitchen

Ham and Gruyère Croque Monsieur
AI-generated image

French · Lunch · Comfort

Ham and Gruyère Croque Monsieur

A classic French toasted sandwich layered with ham, nutty Gruyère, and a creamy, bubbling bechamel sauce.

Riff KitchenBy Riff Kitchen·Sep 14, 2026
10 prep · 15 cook
25 min
servings
2
effort
Medium

French · Lunch · Comfort

Ham and Gruyère Croque Monsieur

A classic French toasted sandwich layered with ham, nutty Gruyère, and a creamy, bubbling bechamel sauce.

Riff KitchenBy Riff Kitchen·Sep 14, 2026

On Riff.kitchen, recipes start from what is already in your fridge. Add what you have, and it plans around whatever goes off first.

10 prep · 15 cook
25 min
servings
2
effort
Medium

Chef's note

This recipe transforms deli ham into an indulgent bistro-style lunch by incorporating a stovetop bechamel.

Ingredients

2Serv
How long do these keep? See the storage chartMissing one? What to use insteadToo much? What freezes and what does not

Method

7 steps · tap one to tick it off

Tips

  • Add the milk a little at a time. Whisking it into the butter and flour gradually keeps the bechamel smooth. Poured in all at once, it lumps.

  • Keep the bechamel thick. A thin sauce runs off the bread under the broiler. It should coat a spoon thickly before it goes on the sandwiches.

  • Stay by the broiler. Broilers vary, and bechamel goes from golden to burnt within a minute. Check after 2 minutes.

Swaps

  • No sourdough bread? Thick white sandwich bread or brioche. Brioche browns faster, so watch it in the skillet.

  • No Dijon mustard? Whole grain or yellow mustard.

  • No whole milk? 2% milk. The sauce is slightly thinner, so simmer it a minute longer.

Storage

  • Fridge: Best eaten the day it is made. Leftover bechamel keeps 3 to 4 days in a sealed container.

  • Freezer: Not worth freezing once broiled: the bread turns soggy under the sauce.

  • Reheat: On a rack in a 190°C oven until crisp and steaming hot (75°C in the center).

Fridge and reheating follow Illinois Extension; freezer times are for quality and follow the University of Nebraska-Lincoln, as on what freezes and what does not.

Made it?

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Swap something, change the servings, or ask why a step works

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Chef's note

This recipe transforms deli ham into an indulgent bistro-style lunch by incorporating a stovetop bechamel.

Ingredients

2Serv
How long do these keep? See the storage chartMissing one? What to use insteadToo much? What freezes and what does not

Instructions

Follow the steps to perfection.

Tips

  • Add the milk a little at a time. Whisking it into the butter and flour gradually keeps the bechamel smooth. Poured in all at once, it lumps.

  • Keep the bechamel thick. A thin sauce runs off the bread under the broiler. It should coat a spoon thickly before it goes on the sandwiches.

  • Stay by the broiler. Broilers vary, and bechamel goes from golden to burnt within a minute. Check after 2 minutes.

Swaps

  • No sourdough bread? Thick white sandwich bread or brioche. Brioche browns faster, so watch it in the skillet.

  • No Dijon mustard? Whole grain or yellow mustard.

  • No whole milk? 2% milk. The sauce is slightly thinner, so simmer it a minute longer.

Storage

  • Fridge: Best eaten the day it is made. Leftover bechamel keeps 3 to 4 days in a sealed container.

  • Freezer: Not worth freezing once broiled: the bread turns soggy under the sauce.

  • Reheat: On a rack in a 190°C oven until crisp and steaming hot (75°C in the center).

Fridge and reheating follow Illinois Extension; freezer times are for quality and follow the University of Nebraska-Lincoln, as on what freezes and what does not.

Made it?

Tap a star to rate it.

Community Reviews 0

No reviews yet. Be the first to try this!

Riff Assistant

Ready to Remix

Recipe Riffs

I can remix this recipe instantly. Want to make it spicy, vegan, or swap an ingredient?