April 10th, 2010

Roasted cauliflower tarte with caramelized Onions

DSC_1760 A Tart filled with cauliflower and onions sounds not exiting. But if you roast the cauliflower in the the oven and caramelize the onions and if you then add mustard and a flavourful cheese you get a small explosion of diffrent tastes with every bite. There is the sour taste of mustard, sweet from onions, the dark down-to-earth taste of cauliflowers topped with flavour of baked cheese.

I have to admit that it was the mustard that make me curious about this recipe at Smitten Kitchen. Mustard in a Tarte? That sounds good! And it tastes good!

I make same changes. There was no Mascarpone in the pantry so I used sour cream instead and the truffeled oil was complete omitted. For the pastry shell I used the darker Type 1050 flour. And I am slice the cauliflower before baking instead of slicing it afterwards (because I mixed up the instruction).

Roasted cauliflower tarte with caramelized Onions

for a tarte form with a diameter of 24 cm


  • 200g Flour Type 1050
  • 80g Butter
  • 1 Egg
  • 3g Salt


  • 500g cauliflower
  • 1,5 Tbs olive oil
  • 2 big onions
  • 1 Tbs honey mustard(homemade or Dijon honey mustard)
  • 2 big Eggs
  • 200g sour cream
  • 100g cream
  • 100g grated old Gouda
  • Salt
  • Pepper
  • nutmeg

For the Dough: Mix Flour, butter, egg and salt and chill the dough for 30 min,

For the Filling: Peel the onions, cut them into halves, then slice them thinly. Heat a pan to mild heat, add oil and the onions and cook until the onions are soft and have a dark golden colour (about 25min).

In the meantime heat the oven to 220°C. Wash the cauliflower and slice it thinly.  Place the slices on a baking tray and sprinkle a tablespoon oil over it. Roast it for 15 min until the cauliflower get brown tips. Let onions and cauliflower cool down while you mix sour cream, cream, eggs and grated cheese and seasoned it with salt, pepper and nutmeg.

Roll the dough into a circle of 30 cm and place it in a greased tarte form (Diameter 24 cm). Press it to remove air bubbles.

Use a spoon or a kife to spread the mustard over the bottom and the sides, then spread the onions and  on the onions the cauliflower. Pour the cream mixture over it and bake for 40 min on 220°C.

6 Responses t_on Roasted cauliflower tarte with caramelized Onions

  1. Heike September 21st, 2015

    Blumenkohl ist eigentlich nicht mein Lieblingsgemuese, aber diese Tarte hat mich eines besseren belehrt! Total lecker – besonders mit dem Honigsenf, denn das verleiht der Tarte das gewisse etwas…

  2. Micha March 16th, 2013

    Ist ja wohl klar, dass diese Tarte nun auf die Liste rutscht! Liest sich super!
    …viele liebe Grüße

  3. Stefanie April 15th, 2010

    @Miriam: You have to bake the tarte, its really delicious and the cauliflower smells not so much during roasting!
    @Joanne: Thank you.

  4. Joanne April 10th, 2010

    I have to say, anything with caramelized onions in it never fails to get my attention. This sounds and looks delicious!

  5. Miriam/The Winter Guest April 10th, 2010

    I also bookmarked this Smitten Kitchen recipe! But I was not aware that the cauliflower was roasted instead of boiled… this is a much better option. I hate the smell of boiling cauliflower.


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