Golden Sweet Potato Tart with Brie, Caramelized Onion, Pecans & Cranberry Maple Glaze

Golden Sweet Potato Tart with Brie, Caramelized Onion, Pecans & Cranberry Maple Glaze is an elegant sweet-and-savory tart made with flaky puff pastry, tender roasted sweet potato, creamy melted Brie, and deeply caramelized onions. A glossy cranberry maple glaze adds a bright, tangy sweetness, while toasted pecans bring the perfect finishing crunch.

It’s the kind of recipe that looks impressive enough for a holiday table but is surprisingly simple to make. Honestly, the combination of buttery pastry, creamy Brie, sweet potato, caramelized onion, and cranberry glaze makes every bite feel special.

Ingredients

For the Tart

• 1 sheet (about 230 g) puff pastry, thawed
• 1 medium sweet potato (about 300 g), peeled and thinly sliced
• 8 oz (225 g) Brie cheese, thinly sliced
• 1 large yellow onion, thinly sliced
• 2 tbsp olive oil
• 1 tbsp butter
• 1 tbsp brown sugar
• 1/2 tsp dried thyme
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1 egg, beaten, for brushing the pastry

For the Cranberry Maple Glaze

• 1/3 cup (80 g) cranberry sauce
• 2 tbsp pure maple syrup
• 1 tbsp fresh orange juice
• 1 tsp balsamic vinegar
• 1/2 tsp Dijon mustard
• Pinch of salt

For the Topping

• 1/3 cup (40 g) pecans, roughly chopped and toasted
• 1 tbsp fresh thyme leaves
• 1 tbsp fresh parsley, chopped
• 1 tsp orange zest, optional

How to Make It

1. Preheat the Oven

Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper and set it aside.

2. Prepare the Sweet Potato

Peel the sweet potato and slice it very thinly, about 1/8 inch (3 mm) thick. Thin slices cook more evenly and develop beautifully golden edges without adding too much moisture to the puff pastry.

3. Caramelize the Onion

Heat the olive oil and butter in a large skillet over medium-low heat. Add the sliced onion and cook for 15–20 minutes, stirring occasionally, until the onion becomes very soft and deeply golden.

Add the brown sugar, dried thyme, salt, and black pepper. Continue cooking for another 2–3 minutes, stirring occasionally, then remove from the heat.

4. Prepare the Puff Pastry

Place the thawed puff pastry on the prepared baking sheet. Lightly score a 1-inch (2.5 cm) border around the edges without cutting all the way through the pastry.

Prick the centre several times with a fork. This helps control how much the centre puffs during baking while allowing the outer border to rise beautifully.

5. Add the Caramelized Onion

Spread the caramelized onions evenly over the centre of the puff pastry, keeping the scored border clear. Try to distribute the onions in an even layer so every slice gets plenty of flavour.

6. Layer the Sweet Potato

Arrange the thin sweet potato slices over the caramelized onions, slightly overlapping each slice. Drizzle lightly with olive oil and season with a small pinch of salt and black pepper.

7. Add the Brie

Arrange the thin slices of Brie evenly over the sweet potatoes. Keep most of the cheese inside the pastry border so it melts over the filling without spilling excessively onto the baking sheet.

8. Brush the Pastry

Brush the exposed puff pastry border with the beaten egg. This creates a glossy, deeply golden finish as the tart bakes.

9. Bake Until Golden

Bake for 25–30 minutes, or until the puff pastry is deeply golden and crisp, the sweet potato is tender, and the Brie is melted and bubbling.

10. Make the Cranberry Maple Glaze

While the tart bakes, combine the cranberry sauce, maple syrup, fresh orange juice, balsamic vinegar, Dijon mustard, and salt in a small saucepan.

Warm over low heat for 3–5 minutes, stirring occasionally until the mixture becomes smooth and glossy. Remove from the heat.

11. Toast the Pecans

Place the chopped pecans in a dry skillet over medium-low heat. Toast for 3–4 minutes, stirring frequently, until fragrant and lightly golden.

Remove the pecans from the skillet and let them cool slightly before using.

12. Finish the Tart

Remove the tart from the oven and allow it to rest for 5 minutes. Drizzle the cranberry maple glaze over the melted Brie and roasted sweet potatoes, letting some of it naturally spread across the surface.

13. Garnish

Scatter the toasted pecans over the top. Finish with fresh thyme, chopped parsley, and a little orange zest for a bright citrusy accent.

14. Serve

Slice the tart into squares or wedges and serve warm. The flaky pastry, creamy Brie, sweet caramelized onions, tender sweet potato, crunchy pecans, and tangy cranberry-maple glaze create an irresistible sweet-and-savory combination.

Why This Recipe Works

This tart works because every component brings something different to the table. The puff pastry provides a crisp, buttery base, while the sweet potato becomes tender and lightly caramelized as it bakes.

The caramelized onion adds deep savoury sweetness, creating a wonderful contrast with the creamy Brie. As the Brie melts, it coats the vegetables with a rich, velvety texture.

Then comes the cranberry maple glaze. Its tart cranberry flavour, maple sweetness, orange brightness, and subtle balsamic tang cut through the richness of the cheese and pastry. Toasted pecans add the final crunchy element.

Tips for the Best Sweet Potato Tart

• Slice the sweet potato thinly: About 1/8 inch thick allows the slices to become tender without overloading the pastry with moisture.
• Take your time with the onions: Slow caramelization develops a deeper, sweeter flavour than cooking them quickly over high heat.
• Keep the pastry cold: If the puff pastry becomes very soft while assembling, place it in the refrigerator for a few minutes before baking.
• Don’t overload the centre: An even layer of toppings helps the pastry bake crisp rather than becoming soggy.
• Score, don’t cut, the border: A shallow score creates a defined raised edge while keeping the filling contained.
• Watch the pecans: Nuts toast quickly, so stir frequently and remove them from the heat as soon as they’re fragrant and lightly golden.
• Let the tart rest: A short resting period allows the melted Brie and glaze to settle before slicing.
• Add the glaze after baking: Drizzling it over the warm tart keeps its fresh, glossy flavour intact.

Serving Suggestions

This tart makes a beautiful appetizer for holiday gatherings, dinner parties, brunches, or weekend entertaining. Cut it into smaller squares for an easy finger food or larger wedges for a more substantial serving.

Serve it alongside a simple green salad dressed with lemon vinaigrette for a light lunch. It also pairs beautifully with roasted chicken, turkey, pork, or other savoury main dishes.

For a festive presentation, arrange the slices on a large white serving platter and finish with a few extra thyme leaves, pecans, and a light drizzle of cranberry glaze.

Frequently Asked Questions

Can I use butternut squash instead of sweet potato?

Yes. Thinly sliced butternut squash works well as a substitute. Make sure the slices are thin enough to become tender during the pastry’s baking time.

Can I use another cheese instead of Brie?

Yes. Camembert is an excellent alternative because it melts similarly. Goat cheese can also work, although it will create a different texture and flavour.

Can I prepare the tart ahead of time?

You can prepare the caramelized onions and cranberry maple glaze ahead of time. For the best pastry texture, assemble and bake the tart shortly before serving.

How do I prevent the puff pastry from becoming soggy?

Keep the sweet potato slices thin, avoid adding excessive oil, caramelize the onions until their moisture has cooked away, and avoid overcrowding the pastry with toppings.

Can I use store-bought cranberry sauce?

Absolutely. Store-bought cranberry sauce works perfectly for the glaze and makes this recipe even quicker to prepare.

Can I use walnuts instead of pecans?

Yes. Toasted walnuts are an easy substitute and add a slightly earthier flavour that pairs beautifully with Brie, sweet potato, and cranberry.

Nutrition & Timing

Details	Amount
Prep Time	20 minutes
Cook Time	45 minutes
Total Time	1 hour 5 minutes
Servings	8
Calories	Approx. 390 per serving
Protein	Approx. 9g per serving

Final Thoughts

Golden Sweet Potato Tart with Brie, Caramelized Onion, Pecans & Cranberry Maple Glaze transforms a handful of simple ingredients into a gorgeous centrepiece that’s full of contrasting flavours and textures.

From the crisp, golden puff pastry and creamy Brie to the sweet roasted sweet potato and deeply caramelized onion, every layer brings something delicious. The cranberry maple glaze adds a festive finishing touch, while toasted pecans provide the crunch that brings everything together.

Whether you’re serving it as a holiday appetizer, a beautiful brunch dish, or a cosy weekend lunch, this tart is an easy way to make an ordinary meal feel wonderfully special.

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