Name: Sweet Potato, Feta & Caramelised Onion Tart
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: Mediterranean
Ingredients: For the Tart:; 1 sheet puff pastry, thawed; 2 medium sweet potatoes, peeled and sliced thin; 1 tbsp olive oil; Salt and black pepper, to taste; 1 large onion, thinly sliced; 1 tbsp butter; 1 tsp brown sugar; 4 oz feta cheese, crumbled; 1 tsp fresh thyme leaves; 1 egg, beaten (for egg wash)

Sweet Potato, Feta & Caramelised Onion Tart

Why You’ll Love This Recipe

This tart brings together rich flavors in a quick and easy way. The sweet potato’s natural sweetness pairs beautifully with the tangy feta, while the caramelized onions add depth and richness. The puff pastry provides the perfect flaky base, making it the ultimate balance of savory and sweet. Whether you’re looking for a hearty lunch, light dinner, or a show-stopping appetizer, this tart fits the bill. Plus, it’s vegetarian-friendly!

Ingredients

1 sheet puff pastry, thawed
2 medium sweet potatoes, peeled and sliced thin
1 tbsp olive oil
Salt and black pepper, to taste
1 large onion, thinly sliced
1 tbsp butter
1 tsp brown sugar
4 oz feta cheese, crumbled
1 tsp fresh thyme leaves
1 egg, beaten (for egg wash)

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

Sweet Potato, Feta & Caramelised Onion Tart

Directions

Step 1: Preheat and Roast the Sweet Potatoes
Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
Toss the sweet potato slices with olive oil, salt, and pepper. Roast them on the prepared baking sheet for 20 minutes, or until they are tender. Once done, set them aside to cool slightly.

Step 2: Caramelize the Onions
In a skillet over medium heat, melt the butter and sauté the onions until they soften. Add the brown sugar and continue cooking for about 15 minutes, until the onions are golden and caramelized. Remove from heat and set aside.

Step 3: Prepare the Puff Pastry
On a lightly floured surface, roll out the puff pastry slightly and place it on a baking sheet. Score a 1-inch border around the edges without cutting all the way through. This will create a beautiful, raised edge when baked.

Step 4: Assemble the Tart
Spread the caramelized onions inside the border of the puff pastry. Layer the roasted sweet potato slices on top, then sprinkle with crumbled feta and fresh thyme leaves.

Step 5: Egg Wash and Bake
Brush the pastry border with the beaten egg. Bake in the preheated oven for 20-25 minutes, or until the pastry is puffed and golden.

Step 6: Serve
Allow the tart to cool slightly before slicing and serving. You can enjoy it warm or at room temperature.

Servings and Timing

Servings: 6
Prep Time: 20 minutes
Cook Time: 40 minutes
Total Time: 1 hour

Variations

Add a Drizzle of Honey: For extra sweetness, drizzle some honey over the tart just before serving.
Add Greens: You can add a handful of spinach or arugula on top of the tart before baking for a burst of color and flavor.
Swap Feta for Goat Cheese: If you prefer goat cheese, it’s a great alternative that will still complement the sweet potatoes and caramelized onions beautifully.

Storage/Reheating

Storage: Store leftovers in an airtight container in the fridge for up to 3 days.
Reheating: To reheat, place the tart in the oven at 350°F (175°C) for 10-15 minutes until warmed through and the pastry crisps back up.

FAQs

Can I use a different type of pastry?

Yes! You can substitute the puff pastry with shortcrust or phyllo dough, but puff pastry will give the best texture.

Can I use pre-cooked sweet potatoes?

Yes, you can use pre-cooked sweet potatoes. Just slice them thin and layer them onto the pastry without roasting them.

How can I make this tart gluten-free?

To make this tart gluten-free, use gluten-free puff pastry or make your own crust using gluten-free flour.

Can I freeze this tart?

Yes, you can freeze the assembled tart before baking. Wrap it tightly in plastic wrap and foil and freeze for up to 1 month. When ready to bake, no need to thaw—just bake as instructed, adding a few extra minutes.

Can I add protein to this tart?

Yes! You can add cooked chicken, or even some chickpeas to make it a more substantial meal.

Can I use sweet onion instead of regular onions?

Yes, sweet onions would work just as well, providing a milder, sweeter flavor to complement the other ingredients.

How do I avoid the tart getting soggy?

To avoid a soggy tart, make sure the sweet potatoes are roasted until tender but not wet, and let them cool slightly before assembling. The caramelized onions should be allowed to cool as well.

Conclusion

This Sweet Potato, Feta & Caramelised Onion Tart is a flavorful, easy-to-make dish that’s perfect for a variety of occasions. Whether served as a light lunch, dinner, or elegant appetizer, it’s a comforting and satisfying option that’s sure to impress. With its flaky puff pastry, creamy feta, and sweet potatoes, this tart will quickly become a favorite in your recipe repertoire!