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These French Onion Tarts are going viral on tiktok and for VERY good reason! They’re so simple to make and absolutely delicious.

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Have you tried these French Onion tarts yet? I saw them going viral on social media and could NOT wait to give them a try.

The sweet, peach version of this recipe went viral first but I’m ALWAYS a fan of savory.

french onion tarts on a baking tray lined with parchment paper

We’re going to keep this short and sweet today! I hope you LOVE these tarts!

5 from 3 votes

French Onion Tart (Tiktok Viral!)

Prep: 10 minutes
Cook: 15 minutes
Total: 25 minutes
Servings: 6 pastries
These French Onion Tarts are so simple to make and absolutely delicious. They’re totally worth the hype!
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Ingredients 

  • 1 sheet of puff pastry
  • Handful of pearl onions, thinly sliced (or 1 small onion thinly sliced)
  • olive oil
  • balsamic glaze
  • Salt, pepper
  • 2 tablespoons of fresh thyme
  • 1/2-3/4 cup freshly grated parmesan
  • Egg wash: 1 egg whisked together with 1 tablespoon of water

Instructions 

  • Pre-heat the oven to 400 degrees F. Line a large baking sheet with parchment paper.
  • On a floured surface, roll out the puff pastry so that it’s a couple inches larger on each side. Cut the pastry into 6 even rectangles.
  • On the parchment paper, drizzle the olive oil and balsamic glaze in a rectangle a little smaller than the puff pastry (see video for reference). Sprinkle with salt, pepper, and fresh thyme.
  • Place onions on top of the oil mixture and sprinkle with the parmesan cheese. Place a rectangle of the puff pastry on top and gently press the edges to kind of seal it to the parchment paper. Repeat with all of the ingredients.
  • Brush the tops of the pastry with the egg wash and sprinkle the tops with more parmesan cheese. Bake in the oven for 15-20 minutes until the pastry is puffed up and a deep golden color on top. ENJOY!

Nutrition

Calories: 272kcal, Carbohydrates: 20g, Protein: 6g, Fat: 19g, Saturated Fat: 5g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 10g, Cholesterol: 7mg, Sodium: 248mg, Potassium: 48mg, Fiber: 1g, Sugar: 1g, Vitamin A: 73IU, Vitamin C: 0.4mg, Calcium: 79mg, Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Mention @foodwithfeeling or tag #foodwithfeeling!

About Brita Britnell

Brita is the author of Food with Feeling which is a vegetarian based food blog. She creates easy and delicious recipes that encourage people to try more meat-free recipes!

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5 from 3 votes (1 rating without comment)

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2 Comments

  1. Jody says:

    5 stars
    Have made this a couple of times and this time with a balsamic/ fig jam. Delicious!!

  2. Cathy says:

    5 stars
    Hi I’m so excited to try this recipe, it looks DELICIOUS! However I do have to point out that IF you use Parmesan cheese, it is not actually vegetarian because Parmesan uses animal rennet. I’m going to try it with a different kind of cheese to make it vegetarian.