quiche met gekarameliseerde ui

Quiche with caramelized onion and gruyere

Are you a big fan of onionsoup as well? This is the quiche version of that. Onion, gruyere, cream, eggs and all that on a puff pastry base. Healhy? No. Do we care? Also no.

Caramelized onion

It's very flavourfull, I also used it in the sauce of this burger. It makes your dish much more interesting. It's a deep and sweet flavour and together with the gruyere it's a classic combination.


You can use another type of cheese if you're not a fan. It does have a bit of a musty flavour so I can understand if you want to swap it out for a regular mature cheese.

Puff pastry

You can use storebought puff pastry for this recipe. I had some homemade in my freezer so I used that. The recipe is in mij cookbook, Vers Deeg. You can buy it over here but it's only in Dutch.

quiche met gekarameliseerde ui

Quiche with caramelized onion and gruyere

Quiche with caramelized onion and gruyere
cooking time30 min
total cooking time1 uur 30 min


  • baking dish of around 22 cm


  • 1 roll puff pastry
  • 30 grams unsalted butter
  • 300 grams red onions, sliced thinly in half rings
  • 4 eggs
  • 100 grams full fat milk
  • 100 grams heavy cream
  • 200 grams gruyere, grated
  • 1 teaspoon thyme
  • pepper and salt


  • Melt the butter and caramelize the onion. This can take an hour so take your time. Stir occasionally and season with salt halfway through.
  • Preheat the oven to 190 degrees celcius.
  • Grease the baking dish and transfer the puff pastry into is. Cut off overhanging dough. Pierce the dough with a form and bake blind for 20 minutes.
  • In the meantime whisk the eggs with the milk, heavy cream, gruyere, onion and thyme. Season with salt and pepper.
  • Pour onto the puff pastry base and bake for another 30 minutes, until only the center jiggles slightly.
  • Let the quiche cool off before serving.

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