This post may contain affiliate links.
These Onion Tarts have sweet onions, salty bacon, herbs, and Parmesan cheese all on top of puffed pastry which make this an easy and elegant appetizer!
You all know me as a sucker for appetizers. I have combined some of my favorite flavors in one dish! Caramelized onions, bacon, and parmesan cheese to make these delicious Onion Tarts.
HERE IS WHAT OUR READERS ARE SAYING:
“Wow girl these look fantastic! I must try your version.” – Jocelyn
All on top of light, crispy puffed pastry. These are decadent, irresistible, and surprisingly easy, you just have to be patient with the onions, and you’re good to go!
I can see these lined up on a buffet/party platter or served with a salad on a weeknight, at a holiday gathering, or just a fun appetizer for game nights the possibilities are endless!
Needless to say, these Onion Tarts are super fun and easy, and they absolutely taste amazing, you will want to make them over and over again.
If you have been looking for a new appetizer to serve to family and friends, then this one is it! Once you make them, you will never turn back.
Some of my other favorite appetizers that we have on our site include: BBQ Chicken English Muffin Pizzas, Southwest Egg Rolls and Homemade Potato Chips.
WHY THIS RECIPE WORKS:
- Easily available ingredients help these come together nicely.
- The flavors work so well together.
- You can double this recipe to serve more people or save more for later.
INGREDIENTS NEEDED (FULL RECIPE BELOW):
Bacon
Sweet onion
Pepper
Kosher salt
Parsley
Thyme
Puff pastry
Egg
Water
Parmigiano Reggiano cheese
HOW TO MAKE ONION TARTS:
- Cook the bacon first in a medium-sized pan over medium heat until crispy.
- Let drain on a paper towel, reserving bacon fat in the pan.
- Place the onions into the bacon fat, season with the salt and pepper, cook on medium-low heat until soft and deep brown color, stirring often. About 45-50 minutes. Stir in the herbs. Set aside.
- Preheat the oven to 450°F. Line a sheet tray with parchment paper, set aside.
- Place the puff pastry onto a clean work surface. Unwrap it and cut out circles with a 2 ½ to 3-inch cookie cutter. Place them not touching on the prepared sheet tray.
- Whisk the egg with the water in a small bowl.
- Brush the tops of the pastry rounds.
- Top evenly with the caramelized onions and bacon right in the center. Evenly sprinkle with the cheese.
- Bake for 16 – 20 minutes until golden brown. Garnish with more parsley, optional. Serve immediately.
WHAT IS THE BEST BACON TO USE?
We like applewood smoked bacon but use whatever you have on hand. Thick or regular cuts both work great.
CAN I USE OTHER HERBS FOR THIS RECIPE?
Yes, this really goes great with a lot of herbs. Some others that we have used in the past and also use when we switch the recipe up include: rosemary, basil, tarragon, sage, chives.
CAN I DIP THESE IN A SAUCE?
I’m a huge fan of any and all dipping sauces, while these are great on their own, adding a dipping sauce would be perfect.
Some of our favorites include: pesto, honey mustard, creamy Italian dressing, or even hummus.
HOW TO STORE:
These can be stored in the refrigerator in an airtight container where they will last for up to 5 days.
They can also be frozen, place in a freezer container and they will keep in the freezer for up to 3 months.
To defrost, remove to the refrigerator overnight until thawed. Reheat in the oven until just warmed through. Do not overcook when reheating; you do not want them to burn.
TIPS AND TRICKS:
- This recipe can easily be doubled.
- They can be frozen, see above on how to do that.
- Other herbs can be used if you’d like, see above on my suggestions.
- Add a dipping sauce, some of my favorites are pesto, honey mustard, etc.
- You can use any of your favorite bacon, our favorite is applewood smoked bacon.
Looking for that one appetizer that looks super elegant but in reality is super easy and oh so tasty? You have to make these Onion Tarts for any occasion.
If you like this recipe you might also like:
If you’ve tried these ONION TARTS let me know in the comments how it turned out! You can follow me over on PINTEREST, INSTAGRAM OR FACEBOOK to find some more of our mouthwatering recipes!
Onion Tarts
Ingredients
- 4 slices bacon diced ½-inch thick
- 1 sweet onion thinly sliced
- ¼ teaspoon black pepper
- ⅛ teaspoon kosher salt
- 1 teaspoon fresh chopped parsley plus more for garnish
- ½ teaspoon fresh chopped thyme
- 2 sheets puff pastry thawed
- 1 large egg
- 1 teaspoon water
- 2 tablespoons freshly grated Parmigiano Reggiano cheese
Instructions
- Cook the bacon first in a medium-sized pan over medium heat until crispy.
- Let drain on a paper towel, reserving bacon fat in the pan.
- Place the onions into the bacon fat, season with the salt and pepper, cook on medium-low heat until soft and deep brown color, stirring often. About 45-50 minutes. Stir in the herbs. Set aside.
- Preheat the oven to 450°F. Line a sheet tray with parchment paper, set aside.
- Place the puff pastry onto a clean work surface. Unwrap it and cut out circles with a 2 ½ to 3-inch cookie cutter. Place them not touching on the prepared sheet tray.
- Whisk the egg with the water in a small bowl.
- Brush the tops of the pastry rounds.
- Top evenly with the caramelized onions and bacon right in the center. Evenly sprinkle with the cheese.
- Bake for 16 - 20 minutes until golden brown. Garnish with more parsley, optional. Serve immediately.
Notes
- This recipe can easily be doubled.
- They can be frozen, see above on how to do that.
- Other herbs can be used if you'd like, see above on my suggestions.
- Add a dipping sauce, some of my favorites are pesto, honey mustard, etc.
- You can use any of your favorite bacon, our favorite is applewood smoked bacon.
Nutrition
Love This Recipe?
Follow @ThisSillyGirlsKitchen on Instagram and @danadevolk on Pinterest for more!
Leave a Reply
This site uses Akismet to reduce spam. Learn how your comment data is processed.
If you cut it in squares, you don’t waste any of the puff pastry. I do that with another recipe that called for circles.
You can prepare the items separately ahead of time. Cut the pastry into rounds and freeze. Make the bacon and onions in advance, then the day of assemble and bake them off.
These look delicious. Do I have to make them the day of, or can I prepare them a few days before & pop into oven on day of? Or can I make them, bake them, freeze them, then warm in oven on day of event?
This looks amazing!! Pinned it!
These look amazing! I am pinning so I can make them for our next cocktail party.
Thanks so much!!
Wow girl these look fantastic! I must try your version.