Caramelized Shallot Tarte Tatin with Thyme and Balsamic

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Caramelized shallot and thyme tarte tatin is a savory upside-down tart. Halved shallots cook in butter, sugar, and balsamic until glossy, get covered with puff pastry, bake at 200 C / 400 F for 30 minutes, and flip onto a plate.

I use shallots instead of onions because they keep their shape and turn jammy in about 10 minutes on the stovetop. Fresh thyme goes into the caramel and over the finished tart.

One judgment call matters most. If the shallots release liquid and you don’t cook it down, the syrup stays thin and the pastry base turns soft. Reduce the skillet until the syrup coats the back of a spoon before the pastry goes on.

It serves six as a starter, or four as a light main with a sharp green salad. Paired with soup, it eats like a full meal.

Why You’ll Love This Recipe

• One skillet handles the stovetop caramel and the oven bake
• Jammy shallots over crisp, layered pastry in every wedge
• The shallot base can be caramelized a day ahead
• Keep it vegetarian and feed six as a starter

Ingredient Notes

• shallots: Swap 600 g small yellow onions, quartered through the root, and add 3 to 4 minutes on the stovetop. Cipollini onions work with no change in timing.
• puff pastry: Buy all-butter pastry for the best flavor and flake. Many store-bought dairy-free sheets also work if you want to keep it vegan.
• balsamic vinegar: Sherry vinegar or red wine vinegar can replace it at the same 2 tbsp. The syrup will taste a little sharper and less rounded.
• fresh thyme: Use 1 tsp finely chopped rosemary for the whole recipe if you have no thyme. It’s stronger, so don’t add more.
• goat cheese: Crumbled feta or ricotta salata gives a similar salty tang. Leave it off entirely for a lighter tart.
• unsalted butter: Use 3 tbsp olive oil for a dairy-free caramel. The syrup will be slightly thinner, so cook it an extra minute.

Caramelized Shallot Tarte Tatin with Thyme and Balsamic

A savory upside-down tart: shallots caramelized in butter and balsamic, topped with puff pastry, baked for 30 minutes, and flipped onto a plate.

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Prep Time 15 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 6 servings

Course: Appetizer

Cuisine: French

Calories: 107

Ingredients Method Notes

Ingredients

  

Caramel and shallots

• 600 g shallots about 12 medium, peeled and halved lengthwise, roots left on
• 40 g unsalted butter / 3 tbsp
• 30 g granulated sugar / 2 1/2 tbsp
• 2 tbsp balsamic vinegar / 30 ml
• 4 fresh thyme sprigs left whole, removed before the pastry goes on
• 3/4 tsp kosher salt
• 1/4 tsp black pepper freshly ground

Pastry and finish

• 1 all-butter puff pastry sheet (about 250 g / 9 oz); thawed in the fridge, kept cold
• 1 tbsp all-purpose flour for dusting
• 1 tbsp fresh thyme leaves for finishing
• 60 g goat cheese / 2 oz; crumbled
• 1/4 tsp flaky sea salt to finish

Method

 

1. Heat the oven to 200 C / 400 F with a rack in the middle. Peel the shallots, trim the tops, and halve them lengthwise, keeping the roots attached. Dust the counter with flour, roll the pastry just enough to cut a 27 cm / 10.5-inch round, and chill the round on parchment until needed.
2. Set a 25 cm / 10-inch oven-safe skillet over medium heat. Melt the butter with the sugar, stirring, for 3 to 4 minutes until the sugar dissolves and the mixture turns light amber. Add the balsamic vinegar, which will sputter, and the 4 thyme sprigs, then simmer for 1 minute.
3. Arrange the shallots cut side down in a tight single layer and season with the salt and pepper. Cook for 8 to 10 minutes without stirring, spooning syrup over the tops, until the cut sides are deep golden and the syrup coats the back of a spoon. If liquid still pools around the shallots, keep cooking. Remove from the heat and pull out the thyme sprigs.
4. Lay the cold pastry round over the shallots. Tuck the edges down inside the skillet wall with a spoon, then pierce the pastry 5 or 6 times with the tip of a knife.
5. Set the skillet on a rimmed sheet pan, 33 x 46 cm / 13 x 18 inch, to catch drips. Bake for 30 minutes, until the pastry is puffed and deep golden brown and the syrup bubbles thickly at the edges.
6. Rest the skillet on a rack for 10 minutes. Run a knife around the edge, set a 28 cm / 11-inch rimmed plate over the skillet, and flip in one motion using oven mitts, no later than 15 minutes after the skillet leaves the oven. Lift off the skillet and nudge any stuck shallots back into place.
7. Scatter the thyme leaves, goat cheese, and flaky salt over the top. Cut into 6 wedges and serve warm.

Notes

• Weigh the shallots after peeling. 600 g fills a 25 cm skillet in one tight layer.
• Pull out the whole thyme sprigs before adding the pastry so the stems don't turn bitter.
• Pierce the pastry 5 or 6 times so steam escapes and the top stays flat.
• Wear oven mitts when flipping. The skillet and the syrup are both very hot.

Tips for Success

• Pack the shallots cut side down in one tight layer, since they shrink as they cook and loose gaps leave an uneven tart.
• Keep the root ends attached when halving the shallots so the layers stay together through the flip.
• Hold the cut pastry round on a parchment-lined plate in the fridge until the shallots finish, so it stays cold and puffs higher.
• Tuck the pastry edges down inside the skillet wall with a spoon to form a rim that traps the caramel.
• Flip the tart 10 to 15 minutes after it leaves the oven, then serve within 30 minutes of flipping.

Variations

• Swap goat cheese for crumbled blue cheese and finish with a small handful of toasted walnuts for a sharper, nuttier finish.
• Stir 1 tbsp whole-grain mustard into the syrup after the balsamic goes in for a tangy edge against the sweetness.
• Keep it vegan by using olive oil for the butter, dairy-free puff pastry, and skipping the cheese.

Storage and Reheating

Caramelized shallot tarte tatin keeps in the fridge for 2 to 3 days. Refrigerate within 2 hours of baking, and store wedges in a single layer in a shallow airtight container.

Reheat wedges on a wire rack set over a sheet pan in a 180 C / 350 F oven for 10 to 12 minutes, until the pastry crisps and the center is hot. The oven recrisps pastry where a microwave would steam it soft.

To prep ahead, cook the shallots and syrup in the skillet up to 24 hours before, cool and cover them, then add the cold pastry and bake straight from the fridge with an extra 5 minutes.

Serving Suggestions

Serve the tart warm within 30 minutes of flipping, cut into six wedges, with crumbled goat cheese, thyme leaves, and a pinch of flaky salt on top.

A green salad with a mustard vinaigrette is the closest match, since the acid cuts through the butter and caramel. For a bigger meal, add a bowl of lentil soup or a spiced cauliflower chickpea bake on the side.

Cut thinner wedges for a starter and pour a dry white wine such as Chenin Blanc. It keeps the table vegetarian without feeling light.

FAQ

Why is my shallot tarte tatin soggy on the bottom?

Soggy pastry usually means the shallots released liquid that never reduced. Cook them cut side down for 8 to 10 minutes until the syrup coats the back of a spoon and nothing pools around the edges. Flip the tart 10 to 15 minutes after baking, so steam can settle without the caramel setting.

How do I know when the tarte tatin is done baking?

It’s done after about 30 minutes at 200 C / 400 F, when the pastry is puffed and deep golden brown across the center, not just at the edges. Look for syrup bubbling thickly around the rim of the skillet. Pale pastry in the middle means it needs another 3 to 5 minutes.

Can I use yellow onions instead of shallots in tarte tatin?

Yes, use 600 g small yellow onions, quartered through the root. Onions hold more water, so give them 3 to 4 extra minutes on the stovetop until the syrup thickens. The flavor is a bit sharper and less delicate than shallots. Cipollini work too.

Can I caramelize the shallots a day ahead for a tarte tatin?

Yes. Cook the shallots and syrup in the skillet, cool completely, cover, and refrigerate for up to 24 hours. Lay the cold pastry on top and bake straight from the fridge, adding about 5 minutes to the 30-minute bake time so the base heats through.

What do you serve with a savory shallot tarte tatin?

Serve it with a sharp salad, such as arugula with lemon and olive oil, to cut the butter and caramel. For a bigger meal, add roasted chickpeas or a bowl of lentil soup. A glass of dry white wine, like Chenin Blanc, suits the sweet-savory balance.

What is the difference between a savory tarte tatin and the classic apple version?

A savory tarte tatin swaps the apples for vegetables like shallots and uses less sugar, around 30 g for 600 g of shallots here. Both are cooked in a skillet, topped with pastry, baked, and flipped. The savory version relies on balsamic and thyme to balance the sweetness.

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