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upside down puff pastry onion tart (the one that went viral!)

21 May 2023 by Dominic Franks

Onion Tart

OK… so when your instagram reel goes viral and over 2 million people watch a video of an upside down puff pastry onion tart you know it’s probably worth writing the recipe down.  So here it is:

  • 1 sheet of ready-rolled puff pastry
  • 3 banana shallots – peeled and sliced in half from root to tip
  • a little olive oil
  • a little balsamic vinegar
  • fresh thyme
  • salt and pepper
  • 1 egg, beaten with a splash of milk
  • 1 tub of herb cream cheese – I used the amazing Paysan Breton Garlic & Herb

Pre-heat the oven to 170C (fan) and line 2 baking trays with parchment paper.

Roll out the puff pastry and divide into 8 even rectangles – set aside

Drizzle a little olive oil onto the baking trays in the places where you’re going to place the pastry (accuracy doesn’t matter here.) I did 4 tarts per tray, so I drizzled in 4 quadrants of the tray.

Drizzle a few dashes of balsamic vinegar, then sprinkle each area with salt and pepper and a little fresh thyme.

Lay your onions onto the oil / seasoned mixture.  I used two pieces per tart.

Take one rectangle of pastry and slather it with a teaspoon of cream cheese and then lay it down onto the onions.  Repeat with the remaining pastry. Go around each pastry tart with a fork making indentations around the edges.

Brush each tart with the egg wash and then bake for 25 mins or until golden.  Once out of the oven allow them to cool for about 5 mins and then flip them over.  You may need to run a knife under the tart first.

Onion Tart

For more tart recipes check these out on Dom in the Kitchen

Eat and of course, enjoy!

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Filed Under: Vegetarian Tagged With: onion, pastry, upside down tart, vegetarian, viral video

Previous Post: « asparagus and fennel baked risotto with lemon
Next Post: apricot, blueberry and blackberry traybake »

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Comments

  1. Kayce says

    22 May 2023 at 12:52 am

    Fabulous!

    • Dominic Franks says

      22 May 2023 at 8:43 am

      Thanks Kayce x

      • Juli says

        22 May 2023 at 7:52 pm

        Wish you had a ” print button to easily.print off. But anyway love this

        • Dominic Franks says

          24 May 2023 at 9:31 am

          sorry, will try and sort the print button!

          • IZi says

            26 May 2023 at 8:17 am

            Tlačítko na tisk by bylo super!!! Ale Ctrl C a Ctrl V do Wordu to zachrání. Vypadá to úžasně, hned dnes udělám!!! Děkuji

          • Stacy Hicks says

            1 June 2023 at 8:13 pm

            Awesome to hear!

        • Lynda says

          26 May 2023 at 2:31 pm

          Incase this helps I can save from my iPhone and then print is on drop down. I also love printing recipes.

        • Karen says

          29 May 2023 at 9:39 pm

          Dont know if it helps but I’ve printed a copy by ‘sharing’ the recipe to my own email address.

        • Jeffrey says

          3 June 2023 at 7:52 pm

          Just copy and share it with your printer.

        • ardis says

          3 June 2023 at 11:35 pm

          HI! Email it to yourself and then print! Doesn’t this look delicious?

        • Deborah Ann Hogan says

          7 June 2023 at 2:17 pm

          A writing pen works 🤠

          • Dominic Franks says

            11 June 2023 at 2:44 pm

            Or why write it out at all? Just save it on your laptop or phone? Literal electronic pad that you’re using to view this with? People are odd.

        • jenny says

          12 June 2023 at 6:18 pm

          Me too, I can’t find a way to print this fabulous sounding recipe, not even emailing to myself.
          Guess I’ll have to do the old fashion way, write it out, minus the lovely photo tho.

          • Dominic Franks says

            12 June 2023 at 7:45 pm

            Or don’t print it? Save it to a folder on your phone or laptop? Save some trees.

      • Tasha Olsen says

        25 May 2023 at 2:44 am

        I’m going to make this asap!! Yummy!

        • Dominic Franks says

          27 May 2023 at 10:47 pm

          Yay

  2. Kitty Maria Christina Bulhões Marcial says

    23 May 2023 at 10:15 pm

    I love that, thank you

    • Dominic Franks says

      24 May 2023 at 9:30 am

      oh, thank you x

  3. Michele says

    23 May 2023 at 11:44 pm

    Thank you!! I just jotting the recipe down
    It’s a holiday weekend and I will be making
    them.

    • Dominic Franks says

      24 May 2023 at 9:30 am

      yay, enjoy!

      • Lucette Brown says

        26 May 2023 at 4:20 am

        What is a banan shallot…

        • Dominic Franks says

          27 May 2023 at 10:47 pm

          It’s a shallot. They call them banana shallots here in the uk

  4. Esther Peters says

    24 May 2023 at 12:41 pm

    You may want to place this recipe or a link in the facebookreel. People there really want to know how to cook this.
    Looks absolutely yummy, will try them this weekend!

  5. Kathryn Stych says

    25 May 2023 at 1:33 am

    Does the cream cheese side go down on the onions or face up ?

    • Dominic Franks says

      27 May 2023 at 10:48 pm

      Down onto the onion.

  6. Carlos says

    27 May 2023 at 1:24 pm

    Just tried it, instructions were simple (I have zero kitchen skills) and easy to follow. My gosh, they turned out great! Thank you!

    • Dominic Franks says

      27 May 2023 at 10:46 pm

      Yay. Thanks

  7. Karen says

    27 May 2023 at 1:26 pm

    Can these be prepared an hour or two in advance and eaten at room temp?

    • Dominic Franks says

      27 May 2023 at 10:46 pm

      Yes absolutely

  8. renee says

    27 May 2023 at 9:47 pm

    How early ahead of a party can you make these?

  9. Renee Jean says

    27 May 2023 at 10:26 pm

    How early can you make these before you want to serve them?

    • Dominic Franks says

      27 May 2023 at 10:43 pm

      I think no more than 30 mins

  10. Toni Owens says

    28 May 2023 at 5:12 am

    What would 170°C be on my regular oven? I really want to try these. They look delicious.

    • Dominic Franks says

      28 May 2023 at 6:18 am

      I assume you’re American? That would be 338f

      • C.C. says

        30 May 2023 at 1:59 am

        I think they mean conventional, without fan, wondering myself.

        • Dominic Franks says

          30 May 2023 at 5:03 am

          Definitely used the fan. As per the recipe.

  11. Demi Woodson says

    28 May 2023 at 10:59 pm

    Any recommendations on using air fryer instead of oven?

    • Dominic Franks says

      28 May 2023 at 11:07 pm

      I genuinely don’t know but I think I’d lower the temp to 150 and bake for 15 mins and then check. Sorry I can’t be more helpful. I’ll have to try myself and report back.

  12. Jordan says

    29 May 2023 at 2:58 am

    Hi! Is there anything you recommend to substitute instead of cream cheese? Thanks!

    • Dominic Franks says

      29 May 2023 at 6:12 am

      Well it all depends on what you like / don’t like? A vegan cream cheese would work. Or how about some chutney? But also nothing. Plain would be yummy.

    • Jo Price says

      29 May 2023 at 1:47 pm

      Try with Boursin

    • Matthew says

      5 June 2023 at 4:11 pm

      Hey, I am personally using Vegan cream cheese. You can find Boursin, Tartare and other brands in your supermarkets or online ! You can also use dairy-free options

      • Dominic Franks says

        6 June 2023 at 8:52 am

        That sounds great too.

      • cyndi says

        9 June 2023 at 4:39 am

        have you found vegan puff pastry?

        • Dominic Franks says

          11 June 2023 at 2:43 pm

          Yes. It’s quite common here in the uk. In supermarkets

  13. Kris says

    29 May 2023 at 10:45 pm

    I bought phyllo pastry sheets instead 🤦🏼‍♀️ how many layers would you use to achieve the ideal thickness?

    • Dominic Franks says

      30 May 2023 at 5:04 am

      Ooops!! They’re such different pastry’s I’m Not sure it will work at all. You could try and I’d say as many layers as possible.

  14. Kay says

    31 May 2023 at 11:19 pm

    Love these! I just found a great list of filling ideas I thought I’d share for those looking for more ideas: https://www.chicaandjo.com/upside-down-puff-pastry-tarts/

  15. Pat says

    5 June 2023 at 1:23 am

    Dominic, I’m making this as I type, thank you and wish me good luck! I wish I can send you a picture after they are finished.

    • Dominic Franks says

      6 June 2023 at 8:52 am

      Good luck.

  16. Matthew says

    5 June 2023 at 4:09 pm

    I have all the ingredients for once, attempting this tonight, but this already sounds like a delight x

    • Dominic Franks says

      6 June 2023 at 8:52 am

      How was it?

  17. Wendy Silva says

    5 June 2023 at 5:03 pm

    Can you recommend a substitution for the egg wash? My daughter is allergic to egg but would like to make this

    • Dominic Franks says

      6 June 2023 at 8:52 am

      Try milk or even water would work.

  18. Fayliza says

    5 June 2023 at 10:04 pm

    Wish you had a delivery button. These look amazing!!

    • Dominic Franks says

      6 June 2023 at 8:51 am

      Awww thank you

  19. Nicole says

    10 June 2023 at 7:50 pm

    Omg I’m going to do these with goat cheese. They look wonderful.

    • Dominic Franks says

      11 June 2023 at 2:43 pm

      That sounds lovely

  20. Bridgit says

    11 June 2023 at 2:37 pm

    For those missing the ‘print’ button.

    Just highlight what you want to print
    Right click
    Choose print!

    • Dominic Franks says

      11 June 2023 at 2:43 pm

      Or perhaps we don’t print? Why is everyone obsessed with wasting paper?

  21. Suzanne says

    12 June 2023 at 7:36 pm

    Saw you on Instagram and loved you immediately, now love the recipes! I had to make this one even though I had nothing for the pastry and too lazy to make scratch -so I used biscuits and took them apart by layers- they still came out all right not totally crunchy a little weighty but am restocking and making them again. I am going to make the Caprese Nicoise salad tonight, so excited!

    Thank you for your site and insta! You inspire me to cook and scintillated my senses to eat! LOL

    • Dominic Franks says

      12 June 2023 at 7:45 pm

      Awww thank you so much. Im glad you enjoyed it and happy to inspire. Enjoy the salad.

  22. Anne says

    13 June 2023 at 9:34 pm

    when you say 170deg C (fan) I’m not sure what that means, is that air fry??

    • Dominic Franks says

      14 June 2023 at 6:38 am

      In the uk we use Celsius to measure temperature. I’m the US you use fahrenheight. So 170c would be roughly 338F. Fan means fan assisted oven. (Most modern ovens have a fan assisted setting or a non fan assisted. It makes the oven more efficient and faster but it’s not a necessity.

      • Anne says

        14 June 2023 at 7:27 pm

        Thanks You., since I had all my ingredients ready to go when I messaged you I did a little online look around and not as easy as it should be to find that convection and fan assist are pretty much the same. my oven has a convection option so I chose that and set the temp for the equivalen 338F. and you will be glad to hear that the tarts smelled divine as they were cooking and tasted even better!! Thanks for posting this recipe, it was delicious!!!!

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About Dom In The Kitchen

My name is Dominic, I am a cook, food writer and creative event producer. I write the food blog Dom In The Kitchen and also write a monthly recipe column for Lincolnshire Life Magazine and Good Taste Magazine. I also run creative event production company The Cultivators, producing global events for brands since 1997. I am based both in the small village of Belleau in Lincolnshire and the smaller village of London! Read More…

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