The days are getting *cue Oprah voice* loooooongeeeeer!

Caramelized Onion Tart

It doesn’t seem like it today though, but I swear spring is coming. This week for the first time in a long time I gave the treadmill the finger and ran outside. Sure it was along an extremely busy street in Ottawa, and sure I had to wait for traffic lights, but I actually felt like I was moving! Such a triumph. I came home around dinner time without anything planned and decided to make something quick. I took out some refrigerated pie crust, caramelized some sweet onions, and threw some Gruyere cheese on top. Heaven, my friends!

Caramelized Onion Tart

All you need to do is preheat your oven to 425. In a dutch oven, melt butter over medium-high heat. Add onion, herbs, sugar, salt, and pepper. Stirring occasionally, cook 8-12 minutes, or until tender. Reduce heat to low and cover; cook an additional 5-10 minutes, or until onions are browned and caramelized. *Swoon*. Stir occasionally while cooking.

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Shape pie crust on a lightly floured surface by rolling out into a 12-inch circle. Do this on parchment paper to make the transfer to a baking sheet easier. Then transfer that beauty.

Caramelized Onion Tart

Brush with egg white, and sprinkle 1/2 cup cheese over dough.

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Top with onions, leaving a 2 1/2 inch border.

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Sprinkle remaining cheese, and fold the pie crust over the edge of the onions, pleating as you go. Leave a 4-inch wide opening in the center. Brush crust with egg white.

Caramelized Onion Tart

Bake at 425 for 17-19 minutes, or until crust is golden-brown and cheese has melted.

Caramelized Onion Tart

Let stand 5 minutes before serving. Yum!

Caramelized Onion Tart

 

Rustic Caramelized Onion Tart

Yield: Serves 2-4

Rustic Caramelized Onion Tart

Ingredients

  • 3 tbsp unsalted butter
  • 3 large yellow onions, halved and thinly sliced
  • 1/2 tsp dried thyme
  • 1 tsp sugar
  • 1 tsp fine sea salt
  • A few cracks of fresh pepper
  • Splash of Worcestershire sauce (optional)
  • 1/2 recipe pie dough, or 1 refrigerated pie crust (I used Pilsbury)
  • 1 egg white, lightly beaten
  • 1 cup shredded Gruyere cheese (can sub Swiss cheese)

Instructions

  1. Preheat oven to 425 degrees F.
  2. In a dutch oven, melt butter over medium heat. Add onion and stirring occasionally, cook for about 8-12 minutes, or until onions become slightly tender. Reduce heat to medium-low and add in thyme, sugar, salt, pepper and Worcestershire. Stir everything together and cook an additional 10 to 20 minutes, or until onions are browned and caramelized. Stir occasionally while cooking.
  3. On a sheet of parchment paper, shape pie crust by rolling it out into a 12-inch circle. Transfer crust and parchment paper over to a baking sheet.
  4. In the centre of the rolled out crust place the caramelized onions, leaving a 2-inch border. Sprinkle with Gruyere cheese, and fold the pie crust over the edge of the onions, pleating as you go. Leave a 4-inch wide opening in the center. Brush crust with egg white.
  5. Bake at 425 for 17-19 minutes, or until crust is golden-brown and cheese has melted.
  6. Let stand 5 minutes before cutting into wedges and serving.

Notes

Adapted from Pink Parsley

http://warmvanillasugar.com/2013/01/29/rustic-sweet-onion-tart/

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17 Responses to Rustic Sweet Onion Tart

  1. I LOVE that the days are getting longer!!! I am so ready for winter to be over. Yay for giving the treadmill the finger and running outside! Woot-woot!!! This sweet onion tart looks fantastic!

  2. Ashley Bee says:

    :blinks: It’s THAT easy? Why am I not making this beauty ALL THE TIME? I have all the ingredients on hand already, this will be a breeze!

  3. wow– looks amazing! it’s 66 degrees in CA today!

  4. Eileen says:

    This may have to be what I do with the lone pie crust that’s been hanging out in my freezer since Thanksgiving! Onion and gruyere, om nom nom.

  5. Kathryn says:

    This sounds so delicious – I love those sweet caramelised onions!

  6. Tracey says:

    Caramelized onions *and* Gruyere?!? Oh yes, this is pretty much my perfect meal :)

  7. Helen says:

    What a great idea and recipe. Nice to have when friends pop in and of course just for me also.

  8. I sort of give the treadmill in my apartment building the finger every day – as I walk quickly away from it ;) This tart, however, looks awesome and I would happily welcome it into my eager and hungry tummy :D heehee

  9. Aimee @ ShugarySweets says:

    Oh this tart speaks to me! This would be gorgeous served along side a big roast, or steak. THANKS!!!

  10. Monet says:

    This looks like French Onion soup wrapped up in a delicious pastry. In other words, it couldn’t look better. Thank you for transporting me with your pictures and recipe! I hope you are having a lovely week. Stay warm, eat well, and enjoy the weekend!

  11. Anything with gruyere cheese is on my list to make these days :) This looks so good!

  12. Tracy says:

    Caramelized onions are the. best. thing. ever! What a delightful looking tart!

  13. Joanne says:

    yay for running outside! I’ve been suffering through the cold…it’s not as bad as it seems!

    I love how this stunning tart was something you just “threw together” lol. Sounds wonderful!

  14. This onion tart would be so good! Coincidentally I am slowly caramelizing onions now!

  15. katerina says:

    hi!i made an onion tart last week, but a bit different from yours!
    i love onions.. maybe some day i’ll try yours, it looks delicious too!!!
    xxxFiC.

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