If you’re looking for a dish that perfectly balances sweet, salty, and savory flavors with an irresistible flaky crust, the Sweet Potato, Feta & Caramelised Onion Tart Recipe is going to be your new favorite treat. This tart combines the natural sweetness of tender roasted sweet potatoes with the rich tang of feta cheese and the deep, mellow flavor of caramelised onions, all nestled in a beautifully golden puff pastry. It’s a brilliant blend of textures and tastes that feels both comforting and elegant, making it ideal for everything from casual dinners to impressing guests.
Ingredients You’ll Need
The magic of the Sweet Potato, Feta & Caramelised Onion Tart Recipe lies in its simple yet thoughtfully chosen ingredients. Each component plays a key role, whether it’s adding color, flavor, or that perfect crispy texture.
- 1 sheet puff pastry, thawed: The flaky base that turns golden and airy, giving the tart its irresistible crunch.
- 2 medium sweet potatoes, peeled and sliced thin: These bring natural sweetness and a tender bite when roasted.
- 1 tbsp olive oil: Helps roast the sweet potatoes to a lightly crisp and flavorful finish.
- Salt and black pepper, to taste: Essential seasonings to enhance every layer’s flavor.
- 1 large onion, thinly sliced: The star ingredient for caramelising, providing that gorgeous soft, golden sweetness.
- 1 tbsp butter: Adds richness and helps the onions caramelise beautifully.
- 1 tsp brown sugar: Perfect for deepening the sweetness of the onions to tantalizing levels.
- 4 oz feta cheese, crumbled: Gives a tangy, salty contrast that lifts the entire tart.
- 1 tsp fresh thyme leaves: Offers subtle herbal notes that elevate the flavors.
- 1 egg, beaten (for egg wash): Ensures a shiny, golden crust every time.
How to Make Sweet Potato, Feta & Caramelised Onion Tart Recipe
Step 1: Prepare and Roast the Sweet Potatoes
Start by preheating your oven to 400°F (200°C) and lining a baking sheet with parchment paper for easy cleanup. Toss those thinly sliced sweet potatoes in olive oil, salt, and black pepper — this simple coating is what helps the slices roast up tender and flavorful. Spread them evenly on the baking sheet and roast for 20 minutes until they’re soft and slightly caramelized. Roasting the sweet potatoes ahead gives them that lovely sweetness and soft texture, which is the foundation of this tart.
Step 2: Caramelise the Onions
While the sweet potatoes roast, melt butter in a skillet over medium heat and toss in your thinly sliced onions. Add a sprinkle of brown sugar once the onions start softening — this helps coax out their natural sugars, resulting in a deeply flavorful caramelisation that takes about 15 minutes. This step transforms ordinary onions into luscious, golden ribbons full of rich sweetness, which will beautifully complement the other tart ingredients.
Step 3: Prepare the Puff Pastry Base
On a lightly floured surface, gently roll out the puff pastry sheet just slightly to refresh its shape, then transfer it onto your lined baking sheet. Using a knife, score a 1-inch border all around the pastry, being careful not to cut all the way through. This border will puff up during baking, creating a charming frame for your toppings, while making sure the filling stays perfectly in place.
Step 4: Assemble the Tart
Inside the scored border, spread the caramelised onions evenly, creating a rich, sweet layer. Next, arrange the roasted sweet potato slices neatly on top — layering them invites every bite to have a perfect mix of flavors. Sprinkle crumbled feta cheese over the potatoes, followed by a light scattering of fresh thyme leaves. The tart now looks as stunning as it tastes, combining rustic charm with sophisticated layers.
Step 5: Bake to Perfection
Brush the puff pastry border with beaten egg for that gorgeous golden finish. Pop your tart into the oven and bake for 20 to 25 minutes or until the pastry is puffed up and beautifully golden brown. The smell wafting through your kitchen at this point is almost impossible to resist!
Step 6: Cool and Serve
Once baked, allow the tart to cool slightly to help the filling set just a bit, making slicing easier. This dish tastes fantastic both warm and at room temperature, making it an incredibly versatile option for any occasion.
How to Serve Sweet Potato, Feta & Caramelised Onion Tart Recipe
Garnishes
Adding fresh herbs like thyme or even a sprinkle of chopped parsley right before serving brightens up the dish with a pop of color and fresh aroma. A drizzle of good-quality olive oil or a touch of balsamic glaze can also add a lovely richness and balance to the sweetness of the tart.
Side Dishes
This tart pairs wonderfully with a crisp green salad dressed in lemon vinaigrette, which cuts through the richness to keep your meal feeling light and vibrant. For a heartier meal, consider serving it alongside steamed green beans or a simple tomato and cucumber salad to complement the flavors without overpowering them.
Creative Ways to Present
Slice the tart into bite-sized squares for an elegant appetizer at your next gathering, or serve alongside a bowl of warm soup for a comforting lunch. You could even try serving individual tartlets by cutting the puff pastry into circles and adjusting toppings accordingly for a charming addition to any party spread.
Make Ahead and Storage
Storing Leftovers
Once cooled, store any leftover tart in an airtight container in the refrigerator for up to 3 days. This allows the flavors to meld even more, and it’s perfect for enjoying a quick meal later on.
Freezing
You can freeze the baked tart by wrapping it tightly in plastic wrap and then aluminum foil to prevent freezer burn. It will keep well for up to 2 months. To reheat, thaw overnight in the refrigerator before warming it up in the oven to maintain that delightful crispiness.
Reheating
Reheat the tart in a preheated oven at 350°F (175°C) for about 10-15 minutes until warmed through and crisp again. Avoid microwaving if possible, as it can make the pastry soggy and lose its delightful texture.
FAQs
Can I use a different type of cheese instead of feta?
Absolutely! While feta adds a perfect tangy saltiness, goat cheese or ricotta can work beautifully as creamy alternatives that pair well with the sweet potatoes and onions.
Is puff pastry the best choice for this tart?
Puff pastry is ideal because it creates a light, flaky crust that contrasts wonderfully with the tender toppings, but you could also use shortcrust pastry if you prefer a sturdier base.
Can I prepare the caramelised onions in advance?
Yes! Caramelised onions keep well refrigerated for up to a week and can be made ahead, letting you cut down on prep time when assembling the tart.
What can I serve with this tart to make it a full meal?
Pair the tart with a fresh green salad or a bowl of hearty soup for a balanced and satisfying meal that’s both nutritious and delicious.
Is this recipe suitable for vegetarians?
Definitely! The Sweet Potato, Feta & Caramelised Onion Tart Recipe is fully vegetarian, making it a wonderful option for meat-free meals without sacrificing flavor or satisfaction.
Final Thoughts
There’s something truly special about the Sweet Potato, Feta & Caramelised Onion Tart Recipe that makes it a joy to make and even more enjoyable to eat. It’s a beautiful combination of flavors and textures that feels both comforting and sophisticated. Whether you’re cooking for a cozy night in or looking for a show-stopping dish to impress friends, this tart is a must-try. Give it a go — I promise it will become a cherished favorite on your table!
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Sweet Potato, Feta & Caramelised Onion Tart Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 6 servings
- Category: Appetizer
- Method: Baking
- Cuisine: Mediterranean
- Diet: Vegetarian
Description
This Sweet Potato, Feta & Caramelised Onion Tart is a delightful blend of sweet roasted sweet potatoes, savory caramelized onions, and tangy feta cheese atop a flaky puff pastry crust. Perfect as a savory appetizer or a light main dish, this tart balances rich flavors with a crisp, golden crust. The touch of fresh thyme brings an herbaceous note that elevates this easy yet elegant recipe.
Ingredients
Pastry
- 1 sheet puff pastry, thawed
Vegetables
- 2 medium sweet potatoes, peeled and sliced thin
- 1 large onion, thinly sliced
Other
- 1 tbsp olive oil
- Salt and black pepper, to taste
- 1 tbsp butter
- 1 tsp brown sugar
- 4 oz feta cheese, crumbled
- 1 tsp fresh thyme leaves
- 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 ensure the tart doesn’t stick and is easy to remove after baking.
- Roast Sweet Potatoes: Toss the thinly sliced sweet potatoes with olive oil, salt, and black pepper to season. Spread them on the prepared baking sheet and roast for 20 minutes until tender and slightly caramelized. Remove and set aside.
- Caramelize Onions: In a skillet over medium heat, melt the butter and add the thinly sliced onions. Cook gently until the onions soften, then sprinkle with brown sugar and continue cooking for about 15 minutes until the onions turn golden and caramelized. Remove from heat and set aside.
- Prepare Puff Pastry: Lightly flour a surface and roll out the puff pastry sheet slightly to even the thickness. Place the pastry sheet on the parchment-lined baking sheet. Using a knife, score a 1-inch border around the edges carefully without cutting all the way through to create a raised edge that will hold the toppings.
- Assemble Tart: Spread the caramelized onions evenly within the scored border of the pastry. Arrange the roasted sweet potato slices on top of the onions. Sprinkle the crumbled feta cheese evenly over the sweet potatoes and scatter fresh thyme leaves for an aromatic finish.
- Egg Wash and Bake: Brush the exposed pastry border with the beaten egg to help it turn golden and glossy during baking. Place the tart in the preheated oven and bake for 20 to 25 minutes, or until the puff pastry is puffed up and golden brown.
- Serve: Once baked, allow the tart to cool slightly. Slice into portions and serve warm or at room temperature as a flavorful snack or light meal.
Notes
- If you prefer a crispier crust, bake the puff pastry sheet for 5 minutes before adding toppings.
- For added flavor, sprinkle some chili flakes over the tart before baking.
- This tart can be prepared ahead; simply reheat slightly before serving.
- Substitute feta with goat cheese for a creamier texture.
- Use fresh thyme, but dried thyme can be used if fresh is unavailable, adjusting quantities to taste.
