Delicious & comforting French recipe: la tarte aux oignons

This tarte aux oignons – onion tart- is pure home-made comfort food. When it cooks in the oven, it fills your home with an amazing warm indulgent smell and when you eat it I cannot even start to describe how it melts in your mouth… yummmm…

I made it during half-term when one of my little boy and myself were down with a nasty cold. I had heard some kind of urban legend about the healing power of onions and when I saw that I had an entire bag in my fruit & veg box I thought it was appropriate. I am still not sure that the onion tart itself helped us beat our cold but one thing is sure is that ill or not we all loved it and we enjoyed a delicious dinner that night.

Preparing this delicious tart will only take you 20 minutes but peeling your onions and thinly slicing them could easily take an additional 10-20 minutes. As a shortcut, you can buy frozen onions (peeled and chopped) but you will then need to make sure that all the water they will give evaporates before adding the olive oil. I personally used fresh onions, which I peeled, sliced and froze when they were really fresh and I defrosted on the day I made the tart. Give it a go, it is a seriously delicious tart!

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La tarte aux oignons – The onion tart

This tarte aux oignons – onion tart – is pure home-made comfort food.

  • 1 ready roll short crust pastry
  • 600 g onions (peeled and really thinly sliced)
  • 50 ml olive oil
  • 80 ml white wine
  • 2 slices bread (crust removed)
  • 200 ml crème fraiche (half fat)
  • 1 tbsp flour
  • 2 tbsp milk (semi skimmed)
  • 1 egg
  • salt and pepper
  1. Preheat your oven to 190ºC.
  2. Put your pastry on a baking paper (if it isn’t already done) and line it in your tin. Gently prick the base all over with a fork.
  3. Combine the onions with the olive oil in a frying pan and leave to cook over a medium heat during 15 minutes stirring every now and then. They should become translucent but not brown.
  4. Meanwhile, poor the white wine over the bread and mix with a fork until you get a liquid batter. Add the crème fraiche, flour, milk and egg and mix until smooth and well combined.
  5. Add the cooked onions to the mixture and poor everything into the pastry case.
  6. Bake for 45 minutes until the pastry edges are golden and firm. Serve warm or cold.

I asked some of my food bloggers friends what they were cooking with onions: Gary from Big Spud recommended warm curried lamb breast with onions, whilst Camilla mentionned a refreshing tomato, red onions and coriander salad.  

Finally, I thought I would save some precious virtual slices of this tart for some relevant blogging challenges, all the more that I made this tart with the onions from the fruit & veg box I won with my entry in last month Extra Veg challenge: the ultimate baby comfort food, carrot coconut puree!!!

2018-02-04T08:54:56+00:00

11 Comments

  1. Ciara (My Fussy Eater) November 6, 2014 at 3:03 pm - Reply

    This looks so delicious. I don’t care if anyone else in my family will like it, I’ll be making this just for me!!

    • Croque-Maman November 6, 2014 at 3:47 pm - Reply

      LOL :-) Don’t worry they’ll love it too

  2. Jacqueline November 7, 2014 at 12:18 pm - Reply

    I just came back from Strassbourg where I made sure to have a tarte a l’oignon. First time I had it a French friend served it but she couldn’t give me the recipe as it was something in her head. I found a recipe card in a store in Strassbourg but I notice that it includes bacon. I’d anxious to try this one. Merci!

  3. Camilla @FabFood4All November 7, 2014 at 3:35 pm - Reply

    Ooh this onion tart looks delicous and perfect for this time of year:-) Thank you for linking to my salad:-)

  4. Kate @ Veggie Desserts November 9, 2014 at 7:02 pm - Reply

    This sounds, and looks, so good. I definitely believe in the healing power of foods, particularly onions, garlic, lemon and turmeric. I’m glad you’re feeling better – this tart is on my ‘must make’ list!

  5. Jo of Jo's Kitchen November 11, 2014 at 2:09 pm - Reply

    Can I come round for dinner? It looks amazing!

    • Croque-Maman November 12, 2014 at 11:41 am - Reply

      Sure this would be lovely actually :-)

  6. Jeanne @ Cooksister November 16, 2014 at 6:55 pm - Reply

    Oh how lovely this looks! Reminds me of the blindingly good pissaladiere we had in Nice years ago :)

  7. Amanda Lucas November 21, 2014 at 7:12 pm - Reply

    I made your tarte a l’oignon last week. It was very simple to make and my husband and I loved it!

    Merci,
    Amanda

    • Croque-Maman November 27, 2014 at 11:27 am - Reply

      Thank you Amanda :-) I’m glad you loved it too! That’s the best thing about this blog… sharing our best recipes for people to other to enjoy too :-)

  8. Jacqueline Meldrum November 23, 2014 at 7:25 pm - Reply

    I am seriously in love with this tart! Stumbled, pinned and tweeted!

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