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French Onion Palmiers

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All of the flavors of your favorite soup are wrapped up in puff pastry for this delicious appetizer.  It is a perfect make ahead snack for your next party.

Plate full of cheesy french onion appetizer pastries.

    There is just something about a good french onion soup.  The deep, slightly sweet flavor of slowly caramelized onions, a bit of crunch from the crusty bread and the gooey melted cheese topping just come together in a perfect bite.

    The problem is it is hard to eat it gracefully and even harder to eat it on the move while mingling at a party.  So, why not take those flavors and turn it into a palmier?  That’s right!  

Just imagine it, slightly herbed caramelized onions, melty Gruyere all wrapped in a crispy buttery puff pastry crust!

puff pastry topped with golden onions and shredded cheese next to microplane.

     I love hosting parties and my favorite kinds of parties are those that are full of finger foods and small bites.  They are the best because you can have a taste of this and a taste of that.  That way there is a little something for everyone and so much to enjoy for people like me who just want to try it all!

      Whether it is a holiday, a shower or an awards show party, sometimes it is fun to take those appetizers and dress them up a bit.  These french onion palmiers are a perfect addition to any party and are happy to find their place among these fancy appetizers.

     Fancy soiree or casual get together, if I’m making a whole menu I like to have some food that can be prepped ahead.  That way I can enjoy my guests when party time comes.  The palmiers meet those requirements as well!

Golden french onion palmiers with cheese in the middle.

      Properly caramelizing the onions does admittedly take a while, but it is mostly hands off and it can be done a day or two ahead.  In fact, you can do them in the slow cooker if you’d like!

Let them cool, great some Gruyere and roll them up in some puff pastry.  A trip to the refrigerator to get the puff pastry nice and cold again, a few slices and a trip to the oven.  In no time you have a delicious and pretty appetizer.

pile of flaky french onion palmiers.

For another fun puff pastry appetizer recipe, check out my apple cheddar pinwheels. They are a great flaky fall starter.

Yield: 42 Servings

French Onion Palmiers

Golden flaky french onion palmiers ready to eat.

All of the flavors of your favorite soup are wrapped up in puff pastry for this delicious appetizer.  It is a perfect make ahead snack for your next party.

Prep Time 10 minutes
Cook Time 15 minutes
Additional Time 30 minutes
Total Time 55 minutes


  • 2 Tablespoons butter
  • 2 large onions, diced
  • 1 bay leaf
  • pinch of salt
  • 1 clove garlic, minced
  • 1/4 teaspoon dry thyme
  • 6 oz Gruyere cheese
  • 17.3 oz package puff pastry


  1. In a skillet over medium-low heat, melt butter. Add onions, bay leaf and pinch of salt and stir to combine. Continue to cook over low heat as onions slowly cook and caramelize. To do it right, it will take a long time but it is low maintenance. Just give it a stir every so often and let them slowly develop an nice golden color. Once they are completely caramelized, stir in the garlic and thyme and remove from the heat. Allow to cool to room temperature.
  2. Roll out the puff pastry to about 1/4-inch thick. Spread onions over puff pastry, leaving a small border on either side. Sprinkle with shredded gruyere.
  3. Roll one side toward the center of the dough. Then repeat with the second. Wrap tightly with plastic wrap and refrigerate for at least a half hour.
  4. Preheat oven to 400°F and line two baking sheets with parchment paper or silicone mats.
  5. Cut stuffed puff pastry dough into 1/3-inch slices and carefully transfer to baking sheets. Bake for 15-20 minutes or until puffed and golden.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 90Total Fat: 6gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 6mgSodium: 66mgCarbohydrates: 6gFiber: 0gSugar: 0gProtein: 2g

All nutritional information is estimated and will depend on the exact ingredients you use.

Did you make this recipe?

I'd love to see it! Share a picture on Instagram or Pinterest and tag me @carleecooks to let me know how it went!

All of the flavors of your favorite soup are wrapped up in puff pastry for this delicious appetizer.  It is a perfect make ahead snack for your next party.

Share with your friends!

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