Polenta Croque Monsieur
Imported from Instagram
1 hour 15 minsEasy2 servings

Polenta Croque Monsieur

A healthier, gluten-free twist on the classic French croque monsieur. This recipe swaps traditional bread for crispy cooked polenta, packing in extra protein and flavor while keeping the calories lower.

Mise turned a cooking video on Instagram into this written step-by-step recipe — 6 ingredients, 6 steps, 1 hour 15 mins, with a generated photo for every step.

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Time75min
LevelEasy
Servings2
Method 6 steps
01

Bring the water to a boil in a saucepan. Pour in the express polenta and whisk continuously until it forms a thick paste, which takes about 5 minutes.

02

Spread the hot polenta evenly on a sheet of parchment paper until it is at least half a centimeter thick. Place it in the fridge to cool for 1 hour.

03

Once completely cooled and set, cut the polenta into squares to form your sandwich slices.

04

To save time later and prevent the cheese from melting too much, pan-fry one side of each polenta slice in olive oil for 5 minutes before assembling.

05

Assemble the croque monsieur: spread skyr on the unfried side of the slices. Layer the cheese slices and ham on top, then close the sandwich with another polenta slice.

06

Cook the assembled sandwich in the pan until the outside is deeply golden and crispy, and the cheese on the inside is fully melted. Serve immediately with a side salad.

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Notes

This variation of the French bistro staple replaces the traditional sourdough with chilled and pan-seared polenta, offering a denser, corn-forward base that provides a satisfying resistance to the bite. By setting the polenta into a firm sheet before frying, you create a structural foundation that mimics bread but develops a distinct, nutty crust when it hits the hot oil. The inclusion of skyr adds a subtle tang and creamy moisture to the interior, balancing the richness of the melted cheese and cured ham.

Ideal for a weekend lunch or a light supper, the result is a sandwich with a crisp, golden exterior and a molten, savory center. The high water content in the cornmeal prevents the dish from feeling overly heavy, while the frying process ensures the structural integrity of each square. Expect a play on textures where the softness of the cornmeal meets the sharp snap of browned cheese and ham.

Before you start

  • The polenta is ready when the whisk leaves a distinct trail in the bottom of the pan and the mixture feels heavy and resistant to stirring.
  • Ensure the polenta is completely cold and firm to the touch before cutting, or the squares will crumble and fall apart during the initial frying stage.
  • Keep the heat at a medium-low setting when melting the cheese to ensure the center gets hot without burning the cornmeal crust on the outside.
  • Wait for a deep golden-brown color to develop on each side before flipping the sandwich, as this crust provides the necessary strength to hold the filling.

Swaps that work

  • Replace 50g express polenta with 50g coarse cornmeal for a grainier, more rustic texture that requires ten additional minutes of initial boiling.
  • Substitute 1 tablespoon of skyr with 1 tablespoon of full-fat Greek yogurt to maintain the creamy texture with a slightly more acidic profile.
  • Replace Comté or Emmental with 2 slices of sharp cheddar for a bolder flavor and a faster, more fluid melt inside the sandwich.

Keeping it

This dish is best consumed immediately while the polenta crust is at its crispest. If you have leftovers, store them in an airtight container in the refrigerator for up to two days. To reheat, avoid the microwave as it will make the cornmeal soggy. Instead, place the sandwich in a dry pan over medium heat for three minutes per side until the cheese remelts and the exterior regains its crunch. Freezing is not recommended for this dish.

Questions

Can I prepare the polenta squares a day in advance?

The polenta sheet can be prepared, flattened on parchment, and kept in the refrigerator overnight. This actually improves the structural integrity of the sandwich. Slice and fry the squares only when you are ready to assemble and serve to ensure the texture remains crisp rather than rubbery.

Why did my polenta squares fall apart in the pan?

Fragmentation usually occurs if the polenta was not boiled long enough to fully hydrate or if it was still warm when sliced. The mixture must be a very thick paste before cooling and must be chilled until completely cold to allow the starches to lock together firmly.

Is it possible to bake these instead of pan-frying?

While you can bake the assembled sandwiches at 200 degrees Celsius for 15 minutes, the results will be drier. Pan-frying in olive oil is necessary to achieve the specific Maillard reaction on the cornmeal surface that provides the characteristic crunch and golden color of a croque monsieur.

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BrowseLunch 146French 56Comfort Food 688Healthy 287
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