Sweet Potato, Feta & Caramelised Onion Tart Recipe
If you are on the lookout for a dish that perfectly balances sweet, savory, and tangy flavors with a beautiful flaky crust, then this Sweet Potato, Feta & Caramelised Onion Tart Recipe is exactly what you need. Imagine tender roasted sweet potatoes, richly caramelised onions, creamy crumbled feta, and fresh thyme all nestled delicately on golden puff pastry. This tart is not only stunning to serve but also a harmonious blend of textures and tastes that will delight any crowd. Whether for a cozy family dinner or a festive gathering, this recipe is sure to become a cherished favorite.
Ingredients You’ll Need
Gathering simple, wholesome ingredients is the key to the magic of this tart. Each element brings something unique to the table: the sweetness of roasted sweet potatoes, the rich depth of caramelised onions, the tanginess of feta, and the crisp flakiness of puff pastry come together to create a truly memorable dish.
- 1 sheet puff pastry, thawed: Provides a light, buttery, and flaky base that holds all the delicious toppings.
- 2 medium sweet potatoes, peeled and sliced thin: Roasting these slices brings out their natural sweetness and soft texture.
- 1 tbsp olive oil: Helps to roast the sweet potatoes beautifully and adds a subtle fruity flavor.
- Salt and black pepper, to taste: Enhances all the flavors harmoniously without overpowering.
- 1 large onion, thinly sliced: Caramelizes to a sweet, golden perfection that balances the tart’s salty and tangy notes.
- 1 tbsp butter: Adds richness to the onions as they cook slowly to caramelization.
- 1 tsp brown sugar: Boosts the sweetness of the onions and helps create that luscious caramelized glaze.
- 4 oz feta cheese, crumbled: Offers a sharp and creamy contrast that elevates the entire dish.
- 1 tsp fresh thyme leaves: Introduces a fragrant earthiness that pairs perfectly with sweet potatoes and feta.
- 1 egg, beaten (for egg wash): Brushed on the pastry border to ensure a shiny, golden finish.
How to Make Sweet Potato, Feta & Caramelised Onion Tart Recipe
Step 1: Roast the Sweet Potatoes
Start by preheating your oven to 400°F (200°C), and line a baking sheet with parchment paper to keep things clean and easy. Toss the thinly sliced sweet potatoes with olive oil and a pinch of salt and black pepper to bring out their natural sweetness and create a lovely savory edge. Roast them on the lined baking sheet for about 20 minutes until they become tender but still hold their shape perfectly. This roasting step is crucial as it unlocks the sweet potato’s flavor and soft texture that contrasts so nicely with the tart’s crisp crust.
Step 2: Caramelise the Onions
While your sweet potatoes roast, melt the butter in a skillet over medium heat and add the thinly sliced onions. Cook them gently, stirring frequently, so they soften and become translucent. Once they start to slip into a golden color, sprinkle the brown sugar over and continue cooking for about 15 minutes until the onions become deeply caramelized and irresistibly sweet and sticky. The patience here pays off massively, transforming simple onions into a decadent, flavorful layer for your tart.
Step 3: Prepare the Puff Pastry Base
On a lightly floured surface, roll out the puff pastry just a bit to slightly enlarge it without losing its thickness. Transfer it to a baking sheet lined with parchment paper. Using a knife, score a 1-inch border around the edges without cutting all the way through — this border will puff up and create a beautiful crust edge to contain your toppings.
Step 4: Assemble the Tart
Spread the luscious caramelised onions evenly within the scored border on the pastry base. Arrange the roasted sweet potato slices on top in a single layer to ensure even flavor with every bite. Sprinkle the crumbled feta cheese generously all over, followed by fresh thyme leaves that add a light herbal aroma. This assembly step brings all the flavor components together visually and gastronomically.
Step 5: Bake to Perfection
Brush the exposed pastry border with the beaten egg to give it a golden shine and inviting finish once baked. Place the tart into the preheated oven and bake for 20 to 25 minutes, or until the pastry puffs up beautifully and turns a rich golden brown. This baking time ensures the tart is cooked through, the flavors meld nicely, and the texture contrast is spot on between crisp pastry and soft toppings.
Step 6: Cool and Serve
Once baked, allow the tart to cool slightly so the flavors settle and it becomes easier to slice. This tart can be enjoyed warm, which highlights the melted feta and aromatic onions, or at room temperature when the flavors deepen even further. Slice into generous portions and get ready to impress!
How to Serve Sweet Potato, Feta & Caramelised Onion Tart Recipe
Garnishes
To add an extra touch of freshness and flair, scatter fresh thyme leaves or some finely chopped parsley on top just before serving. A drizzle of high-quality olive oil or a sprinkle of flaky sea salt can intensify the flavors and elevate the presentation to next-level deliciousness.
Side Dishes
This tart pairs beautifully with a crisp, peppery salad—think arugula tossed with lemon juice and olive oil—to provide a refreshing counterbalance. For something heartier, roasted seasonal vegetables or a bowl of warm lentil soup make excellent partners that complement the tart’s rich flavor profile.
Creative Ways to Present
Try cutting this Sweet Potato, Feta & Caramelised Onion Tart Recipe into small squares or strips to serve as elegant appetizers at your next gathering. You could also experiment by layering the ingredients in a tartlet tin for single-serving tarts that look stunning on any brunch or lunch buffet.
Make Ahead and Storage
Storing Leftovers
Your tart will keep well in the refrigerator for up to 3 days when stored in an airtight container. This makes for a perfect next-day lunch or a quick dinner option. Just be sure to let it cool completely before storing to maintain the flaky texture of the puff pastry base.
Freezing
For longer storage, you can freeze the tart after baking and cooling it completely. Wrap it tightly in plastic wrap and then foil to prevent freezer burn. Frozen tart will stay good for about 1 month. When you’re ready to enjoy it again, thaw overnight in the fridge before reheating.
Reheating
To reheat, place slices on a baking sheet and warm in the oven at 350°F (175°C) for about 10 minutes or until heated through and the pastry starts crisping up again. Avoid microwaving, which can make the pastry soggy and compromise the wonderful texture contrast in the tart.
FAQs
Can I use a different type of cheese instead of feta?
Absolutely! While feta’s salty tang pairs wonderfully with the sweet potatoes and onions, you can substitute goat cheese or ricotta for a creamier texture. Just keep in mind the flavor profile may shift slightly.
Is it possible to make this tart gluten-free?
Yes, you can use a gluten-free puff pastry available in many stores or make your own gluten-free pastry dough. The key is ensuring your pastry is sturdy enough to hold the toppings without becoming soggy.
How long will the caramelised onions keep if I make them ahead?
You can make the caramelised onions up to 3 days in advance and store them in the fridge in a sealed container. This is a great way to save time on the day you assemble the tart.
Can I prepare this tart vegan-friendly?
To make this tart vegan, swap the butter for a plant-based alternative, use vegan puff pastry, and replace feta with a vegan cheese or seasoned tofu crumble. The sweet potatoes and caramelised onions bring plenty of flavor, so it will still be delicious.
What’s the best way to slice and serve the tart?
Use a sharp knife to cut the tart into six generous slices. Because the pastry is flaky and tender, cutting gently ensures it stays intact. Serving warm or at room temperature enhances the flavor and texture balance.
Final Thoughts
There really is something special about this Sweet Potato, Feta & Caramelised Onion Tart Recipe: it combines simple ingredients to make a dish that feels both comforting and sophisticated. I genuinely believe once you try it, you’ll keep coming back to this recipe to share with friends and family. So grab your puff pastry, slice those sweet potatoes, and get ready to create a tart that warms the heart and delights every taste bud!
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Sweet Potato, Feta & Caramelised Onion Tart Recipe
- Total Time: 1 hour
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
This Sweet Potato, Feta & Caramelised Onion Tart combines the natural sweetness of roasted sweet potatoes and caramelized onions with the savory tang of crumbled feta cheese. Baked on flaky puff pastry with fresh thyme, it’s a perfect savory tart for a light lunch, brunch, or a flavorful appetizer.
Ingredients
Pastry
- 1 sheet puff pastry, thawed
Vegetables
- 2 medium sweet potatoes, peeled and sliced thin
- 1 large onion, thinly sliced
Fats & Oils
- 1 tbsp olive oil
- 1 tbsp butter
Seasonings & Sweeteners
- Salt, to taste
- Black pepper, to taste
- 1 tsp brown sugar
- 1 tsp fresh thyme leaves
Cheese
- 4 oz feta cheese, crumbled
Other
- 1 egg, beaten (for egg wash)
Instructions
- Preheat Oven: Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper to prepare for roasting and baking.
- Roast Sweet Potatoes: Toss the thinly sliced sweet potatoes with olive oil, salt, and black pepper. Spread them evenly on the prepared baking sheet and roast in the oven for about 20 minutes until tender and slightly caramelized. Set aside once done.
- Caramelize Onions: While the potatoes roast, melt butter in a skillet over medium heat. Add the thinly sliced onions and sauté until soft, then sprinkle brown sugar over them. Continue cooking, stirring occasionally, until the onions are golden brown and caramelized, around 15 minutes. Remove from heat and set aside.
- Prepare Puff Pastry: Lightly flour a surface and roll out the thawed puff pastry slightly to smooth it. Transfer it to the baking sheet. Using a knife, score a 1-inch border around the edges without cutting all the way through—this will allow the pastry to puff beautifully in the center.
- Assemble Tart: Spread the caramelized onions evenly within the scored border of the pastry. Arrange the roasted sweet potato slices over the onions. Sprinkle the crumbled feta cheese and fresh thyme leaves evenly on top.
- Egg Wash & Bake: Brush the pastry border with the beaten egg to help it turn a golden brown during baking. Place the tart in the oven and bake for 20 to 25 minutes, or until the pastry is puffed up and golden.
- Serve: Allow the tart to cool slightly before slicing. Serve warm or at room temperature as a delicious appetizer, brunch, or light meal.
Notes
- For crispier edges, chill the puff pastry before rolling out.
- Fresh thyme can be substituted with rosemary or sage for a different flavor profile.
- To make this tart vegetarian, ensure the feta cheese is made without animal rennet.
- Leftover tart can be stored in the refrigerator for up to 2 days and reheated in a low oven for best texture.
- Sweet potatoes can be pre-roasted earlier to save preparation time.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: Mediterranean
