gekarameliseerde ui plaattaart

caremalized onion tart

Whats better than caremalized onion? Especially on a tart with gruyere and thyme.

caremalized onion tart

Onion needs a long time to caremalize. Unfortunately, puffpastry doesn't need as long so once the puff pastry is goldenbrown, cover it with aluminium foil so the onion can cook some more.

gekarameliseerde ui plaattaart


If you use storebought puff pastry this is a very simple recipe. But don;t be fooled, it won't taste simple!

gekarameliseerde ui plaattaart
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caremalized onion tart

caremalized onion tart
cooking time10 min
total cooking time50 min
servings: 8


  • 1 roll puff pastry
  • 2 big sweet onions
  • 50 grams butter
  • 1 teaspoon thyme
  • 150 grams gruyere, grated


  • Preheat the oven to 180 degrees celcius
  • Roll out the puff pastry and fold in the edges a bit so the filling won't fall off.
  • Melt the butter and add the thyme. Lightly brush the pastry with the butter. Divide the cheese on top.
  • Clean the onions and cut in half rings. Put on the tart, you can choose to do it in a pattern.
  • Bake a total of 40 minutes but check regularly if the pastry isn't getting too brown. Cover the pastry with foil if necessary. After covering with foil you cab put the broiler on so the onion will caremalize quicker.

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