Published: Jul 4, 2017 · Modified: Feb 28, 2022 by Sandhya Ramakrishnan · This post may contain affiliate links

Sun Dried Tomato And Onion Tart Recipe

Name: Sun Dried Tomato And Onion Tart Recipe
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Ingredients: 2 sheets Thawed puff pastry ((9 by 9 inches) ); 2 Tablespoon Olive oil; 3 cups Thinly sliced onions; 4 sprigs Thyme; Salt - to taste; 1½ Tablespoon Dijon mustard; 1½ Tablespoon Heavy cream; 1 cup Grated Gruyère cheese; ½ cup Sun-dried tomatoes (roughly chopped (I used Sun dried tomatoes in Olive oil)); ¼ cup Olives (optional)

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This sun dried tomato and onion tart is one of the most delicious and a really quick recipe to make. Made with store bought puff pastry sheet, this savory tart will soon become everyone's favorite appetizer.

When thinking of tarts and pies, the first thing that comes to my mind is dessert. This savory tart made with sun dried tomato, onion and olives is a great alternate to the routine.

Sun dried tomato and Onion tart served in a plate.

This is my second month of participating in the Baking Partners and it is so much fun. This month’s theme was ‘PIE’. There was a real cool Apple pie recipe that I absolutely wanted to try, but having eaten so many sweet treats this month, I decided not to (at least for now).

I am sure I will bake it soon. So as an alternative when I saw the recipe for the Savory pie, I was excited. This Sun Dried Tomato And Onion Tart recipe was suggested by Samantha of Samantha Menzies. The recipe is from here and it was a very quick one, yet loaded with layers of flavor.

Preparation time – 10 mins plus time taken to defrost the pastry sheets
Cooking time – 40 mins
Difficulty level – easy

Ingredients to make Sun Dried Tomato And Onion Tart – Serves 4

Thawed puff pastry, (9 by 9 inches) - 2 sheets
Olive oil - 2 tablespoons
Thinly sliced onions - 3 cups
Thyme - 4-6 sprigs
Salt - to taste
Dijon mustard - 1½ tablespoons
Heavy cream - 1½ tablespoons
Grated Gruyère cheese - 1 cup
Sun-dried tomatoes, roughly chopped - ½ cup (I used Sun dried tomatoes in Olive oil)
Olives - ¼ cup (optional)

How to make Sun dried tomato and Onion tart.

Procedure –

Thaw the puff pastry sheets according to the manufacturer instructions. Unfold the sheets and lay them on baking sheets. If the pastry sheets are touching each other, lay them on 2 different baking sheets. Using a fork, prick the surface several times, leaving a half a inch border all around.

Preheat the oven to 400 F. Now get the prepared sheets in the oven for about 10 minutes or until the sheet base is slightly brown.

The sheets could get puffed up in the oven in spite of pricking them. Let the sheets cool on a cooling rack and allow it to settle down. Then transfer it back to the baking sheet.
In the mean time, add oil to a large sauté pan and get the onions inside it. I used the olive oil from the Sun Dried tomatoes. Also add the required salt and the thyme to it. Sauté the onions on medium heat until they are evenly caramelized.

Sauté th onions in a pan to make Caramelized onion.

In a small bowl combine the mustard with the heavy cream. Mix well and once the pastry sheets have cooled down a bit, spread this mixture evenly on the sheets, leaving half an inch border untouched.

Combine the mustard with heavy cream in a bowl.

Now add half the grated cheese to the pastry sheets.

Next add the sun dried tomatoes, onions and the olives (if using) and spread the remaining cheese on top.

Sun dried tomato and onion

Adding Sun dried tomatoes, onions, and olives to the puff sheet.

Sun dried tomatoes, Onion and Olives

Puff sheet with Sun dried tomato, onion and olive oil.

Cheese spread on top

Bake at 400 F for about 15 mins, until the cheese melts.

Serve hot!

Sun dried tomato and Onion tart is ready to serve.

Expert Tips

Adding the oil from the Sun dried tomatoes, added an extra layer of flavor.
My tarts were a little soggy, the reason being that I did not drain the onions in a paper towel before aging it to the pastry sheet. I would highly suggest that rest the caramelized on a paper towel before adding it to the pastry sheet to ensure crisp tart.
I added olives to one of the tart as my kids do not like olives too much. It added another layer of flavor. So if you are an olive lover, go ahead and use it.

Frequently asked questions

Can I make this tart with phyllo pastry sheet instead of puff pastry?

The answer is no. Phyllo pastry sheets are much different from the puff pastry sheet and it will not work the same way.

What puff pastry sheet do we use?

I use the Pepperridge farms puff pastry sheets that is easily available in any US grocery stores. We could also make our own puff pastry sheet.

How to store the left over savory tart?

This sun dried tomato and onion tart is best eaten right away. If needs to store, refrigerate or freeze in air tight container and reheat in the oven or in air fryer.

More Savory Pies and Tarts

If you made this recipe and liked it, give a star rating on the recipe card or let me know in the comments below. You could also share it with me on Instagram using #MyCookingJourney and tagging me @sandhya.ramakrishnan. You could follow me and my recipes on Facebook |Instagram | Pinterest | Twitter/X

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