Leek & Gruyère Tartlets

Comfort Pastry Appetiser:

There’s something quietly delish about a tartlet when looking to include a comfort pastry appetiser to your party spread.

Especially one that leans into buttery pastry, creamy, oniony leeks, and the unmistakable nuttiness of Gruyère cheese.

These Leek & Gruyère Tartlets are deceptively simple to make, but deliver big on flavour- making them perfect for parties, picnics, or even a relaxed weekend lunch.

When you have rich ingredients like pastry, butter and mascarpone, adding a cheese with a little sharpness can balance things out nicely & help cut through that richness.

A Classic Combination, Miniaturised

Leek and Gruyère is a classic French combination that’s stood the test of time.

The sweet, mellow leek becomes meltingly soft when sautéed, making it the perfect match for the bold, savoury character of Gruyère.

And when tucked into a mini flaky filo tartlet shell?

It’s instant sophistication, in a single bite.

Why They Work for Entertaining

These comfort pastry appetiser bites are brilliant when you’re hosting.

They can be made ahead of time, frozen or refrigerated, served warm or at room temperature, and pair beautifully with wine.

They’re also adaptable- you can make a large tart for slicing, or go for mini tartlet pans or even a muffin tin for individual portions.

Either way, the results are always impressive.

Plus you can change up the flavours depending on your ingredients at home & you taste preferences.

Myself…I like mini tartlets as they always look a little more luxe & I do like my bite-size food.

French meets Mediterranean.

Elevate those Leek & Gruyère tartlets even further with a creamy whipped feta topping– A finishing touch that adds a burst of tang and richness, turning an already elegant bite into something a little more upscale.

Everyone loves a tart…figuratively speaking!

Feel free to experiment- add caramelised onion for extra sweetness, swap the Gruyère for aged cheddar, or scatter a few crisped pancetta bits over the top before baking for a salty finish.

This comfort pastry appetiser recipe invites personal touches.

Leek & Gruyère Tartlets

(Serves 24 Prep 30)

You Will Need:

Filo Tartlet Shells

Delicate, crispy layers of paper-thin filo pastry shaped into tartlet shells. These add a light, golden crunch that contrasts beautifully with the creamy leek and cheese filling. You can make them using buttered filo sheets layered and pressed into mini muffin tins, or use pre-made ones for ease.

Unsalted Butter

Butter is used to sauté the leeks and to brush the filo layers , if you are making your own cases. Butter enhances the sweetness of the leeks and helps the pastry turn perfectly golden without overpowering the filling.

Garlic Paste

Garlic paste added into the leek gives a mellow garlic flavour adding depth without the sharpness of raw garlic. If you don’t have access to garlic paste, you can substitute with 3 fresh garlic cloves crushed.

Small Leeks

The star of the show- small leeks tend to be more tender and sweeter than their larger counterparts. When sautéed slowly, they become silky and slightly caramelised, infusing the tartlets with subtle allium sweetness.

Sea Salt

Just a pinch enhance the natural flavours of the leeks, cheese, and mascarpone without overwhelming the delicate balance of the filling.

Freshly Cracked Black Pepper

Adds a gentle warmth and contrast to the creamy components. A few twists are all it takes to lift the flavour.

Mascarpone

A rich, velvety Italian cheese that blends into the leeks and egg yolk for a creamy, custard-like filling. Its subtle sweetness pairs beautifully with the nutty Gruyère and earthy leeks.

Egg Yolks

These add structure and silkiness to the mascarpone-based filling. They help bind everything together while keeping the texture lush and custard-like rather than firm.

Parmesan Cheese

Quarter of a cup of Parmesan, adds a nice nuttiness to the creamy cheese filling but you can omit if don’t like the flavour. I think it adds to the recipe and adds another savoury layer.

Gruyère Cheese

A nutty, savoury cheese with excellent melting qualities. Gruyère brings a rich, slightly salty depth to the tartlets, complementing the leeks and adding a beautifully golden finish.

For the Whipped Feta Topping

Danish Feta

Creamier and milder than traditional Greek feta, Danish feta whips into a smooth, tangy topping. Its softness makes it ideal for piping or spreading over tartlets.

Greek Yoghurt

Thick and tangy, Greek yoghurt lightens the feta while adding a pleasant acidity. It also makes the whipped topping extra creamy without being overly heavy.

Fresh Garlic

A small clove or two adds bold flavour to the whipped feta, tying in with the garlic notes in the tartlet filling. Use sparingly for balance.

Olive Oil

A drizzle helps emulsify the whipped topping, giving it a silky texture. Choose a mild, fruity olive oil to enhance rather than overpower the feta.

Cream Cheese

This rounds out the feta mix, making it extra smooth and spreadable. It softens the sharper edges of the feta and adds body to the topping.

Garnishes

Pomegranate Arils

Juicy, jewel-like seeds that add a fresh burst of sweetness and a bright pop of colour. They contrast beautifully with the rich cheese and savoury leek filling, and add visual flair.

Garlic Chives

Delicate, grassy herbs with a mild garlic flavour. Finely snipped on top, they add freshness, colour, and a nod to the flavours inside the tartlets.

Instructions:

Preheat the oven to 180°C (fan-forced). Line a flat baking tray with baking paper and set aside.

Sauté the leeks: In a large frying pan, melt the butter over medium-high heat. Once foaming, add the garlic paste and sliced leeks. Toss well to coat the leeks in the butter and garlic. Cook, stirring occasionally, for about 8–10 minutes, or until the leeks are soft, translucent, and beginning to caramelise around the edges. Remove from the heat and let them cool slightly.

Prepare the filling: While the leeks are cooking, In a medium mixing bowl, add the mascarpone, egg yolks, Parmesan and grated Gruyère. Stir thoroughly until the mixture is smooth and well combined. Season generously with sea salt and freshly ground black pepper.

Assemble the tartlets: Arrange the filo tartlet shells on the prepared baking tray, spacing them slightly apart. Using a spoon or small scoop, fill each shell with the mascarpone and Gruyère mixture, ensuring they are evenly filled without overflowing.

Bake: Place the tray in the preheated oven and bake for 10 minutes, or until the filling is just set and the tops are lightly golden. Remove from the oven and allow the tartlets to cool on the tray for 5–10 minutes before topping.

Make the whipped feta topping: While the tartlets are cooling, prepare the topping. In a small food processor, combine the Danish feta, Greek yoghurt, garlic, olive oil, and cream cheese. Blitz until the mixture is light, smooth, and creamy. Scrape down the sides of the bowl as needed to ensure everything is well incorporated. You want the whipped feta to hold its shape when piped. If the mixture is too runny, add a little extra cream cheese.

Pipe the topping: Spoon the whipped feta into a piping bag fitted with a large round nozzle (or a decorative tip such as an open star tip). Pipe a small rosette or swirl onto the centre of each tartlet once they have cooled slightly.

Garnish and serve: Just before serving, sprinkle the tartlets with finely chopped garlic chives and a few pomegranate arils for a burst of colour and a sweet-tart finish.

Helpful Hints:

• To make things really simple & save time, you can purchase the tartlet shells ready made but you just need to find a stockist. Harris Farm stocks these or you could substitute with puff pastry or short crust pastry shells. You can find Harris farms at West End & Clayfield in Brisbane.

• If making your own shells for this comfort pastry appetiser, you can make them ahead of time and store them in an airtight container and then make your filling and bake the tartlets closer to serving.

• I often make bulk tartlets and freeze the extra for another occasion. You could keep these in the freezer for up to 1mth in an airtight container. I have frozen them for up to 3 months.

Leek & Gruyère Tartlets

Recipe

(Serves 24 Prep 30mins)

Ingredients

• 24 Filo Tartlet Shells*
• 30g Unsalted Butter
• 1 Tbsp Garlic Paste
• 2 small Leeks Finely sliced
• 1 tsp Salt
• 1 tsp Black Pepper
• 200g Mascarpone
• 2 Egg Yolks
• 200g Gruyère Cheese
• 1/4 cup Grated Parmesan

Whipped Feta Topping

• 200g Feta
• 2 Tbsp Greek Yoghurt
• 2 Garlic Cloves
• 1 Tbsp Olive Oil
• 100g Cream Cheese

• Pomegranate Arils (Garnish)
• Garlic Chives (Garnish)

*If you can’t find Filo tartlet shells for this comfort pastry appetiser, any savoury tartlet shells will do.

Method

1. Pre-heat oven to 180 C (fan-forced).
2. In a large pan over medium-high heat, melt the butter.
3. Add the garlic paste and sliced leeks. Toss to coat, then cook until the leeks are soft and tender.
4. In a separate bowl, combine the mascarpone, egg yolks, Parmesan and grated Gruyère. Stir until smooth. Season with sea salt and black pepper to taste.
5. Arrange the filo tartlet shells on a lined baking tray.
6. Spoon the mascarpone and Gruyère mixture evenly into each shell.
7. Bake in a preheated oven for 10 minutes, or until the filling is set and lightly golden. Remove and allow to cool slightly.
8. Meanwhile, prepare the whipped feta topping: In a small food processor, combine the Danish feta, Greek yoghurt, garlic, olive oil, and cream cheese. Blitz until smooth and creamy.
9. Transfer the whipped feta to a piping bag fitted with a decorative nozzle. Pipe a swirl onto each tartlet.
10. Finish with a sprinkle of chopped chives and a few pomegranate arils for garnish.

Serve & Enjoy!

Wine Pairing Suggestions:

Chardonnay (Preferably Lightly Oaked or Cool-Climate)

Gruyère and mascarpone work beautifully with Chardonnay’s creamy mouthfeel and restrained acidity. A cool-climate style (like from Yarra Valley or Margaret River) offers citrus and stone fruit notes that pair well with leek and whipped feta, while a lightly oaked version mirrors the richness of the tartlets without overpowering.

• Yarra Valley Chardonnay (Australia)
• Chablis (France – unoaked, crisp)
• Sonoma Coast Chardonnay (California – lightly oaked)

Sparkling Wine (Brut or Blanc de Blancs)

The crisp bubbles cut through the creamy cheeses and buttery filo, while the acidity lifts the sweet leeks and balances the tangy feta. It also enhances the pomegranate garnish beautifully.

• Australian Brut Cuvée or Blanc de Blancs
• Champagne (especially Blanc de Blancs for its citrus-leaning profile)
• Cava (Spain) or Crémant (France) as budget-friendly options

Pinot Gris / Pinot Grigio

This varietal offers stone fruit, pear, and subtle spice that works in harmony with the sweet, sautéed leek and mascarpone. A dry Pinot Gris has enough body to stand up to the Gruyère while staying fresh.

• Alsace Pinot Gris (France – richer style)
• Adelaide Hills Pinot Gris (Australia – elegant and aromatic)
• Northern Italian Pinot Grigio (lighter and crisper)

Sauvignon Blanc

For those who love a punchier white, Sauvignon Blanc delivers bright citrus and herbaceous notes that mirror the garlic chives, pomegranate, and whipped feta. Especially great if you want contrast and freshness.

• Marlborough Sauvignon Blanc (New Zealand – grassy, citrusy)
• Sancerre (France – more refined, minerally)

Dry Rosé

Rosé provides a bridge between the rich and the refreshing. The red fruit notes complement the pomegranate garnish, while the acidity lifts the creaminess of the cheeses and balances the buttery filo.

• Provence Rosé (France – dry and elegant)
• Australian Grenache Rosé (juicier, slightly bolder)

Bonus: Red Wine Lovers?

If you must serve a red, opt for something light-bodied and low in tannins to avoid clashing with the tartlets’ delicate texture.

• Gamay (e.g. Beaujolais Villages) – juicy, fresh, and fruity
• Pinot Noir (cool-climate) – elegant and earthy enough to support leek and Gruyère

Serving Tip:

If you’re serving this comfort pastry appetiser as part of a canapé or grazing board, offering a sparkling wine alongside a still white or rosé gives guests the option to pair based on preference- and both will work harmoniously.