Name: Vegan Leek Tart Recipe
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: Vegan
Ingredients: 1/2 cup (75 g) raw cashews soaked overnight; 1/2 cup (120 ml) water; 2 tbsp (22 g) nutritional yeast; 1/2 tsp (2 ml) white vinegar; 2 tbsp (30 g) vegan butter; 5 medium leeks (about 19 ounces / 540 g); 1/4 tsp salt, adjust to taste; 1/8 tsp ground black pepper; 1 cup (125 g) flour; 1/4 cup (60 g) vegan butter at room temperature; 2-3 tbsp (30-45 ml) water; 1/8 tsp salt

Jump to Recipe· 3.8 from 20 reviews

If you’re searching for a cozy, flavorful dish that feels like a warm hug in every bite, this Vegan Leek Tart Recipe is exactly what you need. Combining tender caramelized leeks with a creamy, tangy cashew sauce nestled in a flaky, buttery vegan crust, this tart is both a feast for your eyes and your palate. Whether you’re a seasoned vegan or just dabbling in plant-based meals, this tart blends simplicity with sophistication in a way that will have you reaching for seconds.

Ingredients You’ll Need

A wooden cutting board sits on a white marbled surface, holding several fresh green and white celery stalks on the left side. On the right side, there are five small dishes arranged neatly: at the top, a white bowl filled with light brown cashew nuts; below it, a white plate with a rectangular piece of pale yellow butter; next to it, a small glass measuring cup with clear water and a brown handle; below that, a blue bowl filled with white flour; to the left, a small white dish with black pepper; below the pepper, a rustic white bowl containing golden-yellow breadcrumbs; and on the far right, a wooden spoon holding white salt. photo taken with an iphone --ar 4:5 --v 7

The beauty of this Vegan Leek Tart Recipe lies in its simple, wholesome ingredients that come together to create layers of flavor and texture. Each component plays a key role, from the creamy richness of cashew cream to the delicate sweetness of sautéed leeks, and the crisp, tender pie crust that holds it all.

Raw cashews: Soaked overnight to soften and blend into a smooth, creamy base that mimics traditional dairy cream.
Water: Added to achieve the perfect cashew cream consistency without diluting flavor.
Nutritional yeast: Introduces a subtle cheesy flavor that enriches the creamy filling beautifully.
White vinegar: Gives the cashew cream a gentle tang that brightens the tart’s overall taste.
Vegan butter: Essential for sautéing leeks and creating a flaky pie crust with a rich mouthfeel.
Leeks: The star of the tart, providing a mild, sweet onion flavor that caramelizes wonderfully when cooked slowly.
Salt and ground black pepper: To season the filling perfectly and enhance all flavors.
Flour: Forms the structure of the pie crust, giving you a sturdy yet tender shell.
Water (for dough): Adjusted carefully to bind the pie crust dough without making it tough or crumbly.

How to Make Vegan Leek Tart Recipe

Step 1: Prepare the Cashew Cream

Start by draining the soaked cashews and tossing them into a high-speed blender. Add the water, nutritional yeast, and white vinegar, then blend until the mixture turns silky smooth, creating a dairy-free cream that’s rich and tangy. This cashew cream is the magic that gives your tart body and lusciousness without any animal products.

Step 2: Slice and Sauté the Leeks

Halve each leek lengthwise and rinse carefully to remove any hidden grit. After drying, slice them crosswise into half-inch rounds. Melt vegan butter in a non-stick skillet, then toss in the leeks with a pinch of salt. Cook gently over medium heat, stirring regularly to avoid sticking, until the leeks become tender and start to caramelize. This slow cooking unlocks their natural sweetness, adding depth to your tart filling.

Step 3: Combine Leeks and Cashew Cream

Once your leeks are perfectly caramelized, pour the cashew cream over them directly in the skillet. Stir gently to coat each slice, then season with salt and black pepper to taste. This step melds the creamy tang with the sweet, tender leeks for a filling that is just irresistible. Remember to taste and adjust seasoning before moving on.

Step 4: Prepare the Pie Crust

Preheat your oven to 355 °F (180°C). In a bowl, combine flour, softened vegan butter, salt, and water, kneading until a firm yet pliable dough forms. Add water little by little if needed — consistency is key to a crust that holds together without crumbling. Shape your dough into a ball, then flatten to about ¼-inch thickness on a floured surface.

Step 5: Assemble and Bake

Lightly grease an 8-inch tart pan with vegan butter, then press the rolled-out dough evenly into the pan, trimming excess around the edges. Use a fork to prick the dough’s bottom gently — this prevents bubbles during baking. Spread your leek and cashew filling evenly over the crust, smoothing it with a spoon. Finally, bake for 30-35 minutes until the crust turns a beautiful golden brown. Let your tart cool slightly before slicing and serving.

How to Serve Vegan Leek Tart Recipe

A close-up of a slice of golden brown quiche held by a woman's hand, showing three visible layers: a light, flaky crust on the bottom, a thick layer of pale green and light yellow filling with visible vegetable pieces in the middle, and a browned, slightly crispy top layer with melted cheese. Small green herb pieces are scattered on the top and around the pie in the background, which rests on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Simple touches can take your Vegan Leek Tart Recipe from delicious to dazzling. Fresh herbs like chopped chives, thyme, or parsley add a burst of green and fresh flavor that complements the creamy filling. A sprinkle of toasted pine nuts or walnuts provides a wonderful crunch contrast, while a drizzle of good quality olive oil brings out the savory depth of the tart.

Side Dishes

Pair this tart with a crisp, lively salad featuring tangy vinaigrette to balance the richness of the leeks and cashew cream. Roasted root vegetables or lightly steamed greens also make for great companions, adding colors and textures that complete your meal with vibrant freshness.

Creative Ways to Present

Serve the tart family-style on a rustic wooden board for a cozy, inviting feel or cut into individual mini tarts for a charming appetizer spread. For an elegant twist, add edible flowers on top for visual appeal and a slight floral note. You can even arrange thinly sliced radishes or colorful heirloom cherry tomatoes around the edges to brighten your plate and impress your guests.

Make Ahead and Storage

Storing Leftovers

Once cooled, wrap your leftovers tightly in plastic wrap or store in an airtight container. Refrigerate for up to five days, making it an ideal dish to prepare in advance for busy weeks or quick meals on-the-go.

Freezing

To enjoy your Vegan Leek Tart Recipe later, freeze individual slices wrapped in parchment paper and sealed inside a freezer bag. This method prevents freezer burn and allows you to thaw portions as needed without sacrificing the crust’s texture or the creaminess of the filling.

Reheating

Reheat slices gently in an oven at 350 °F (175°C) for 10-15 minutes until heated through and the crust is crisp again. Avoid microwaving if possible, as it can make the crust soggy and the filling less appetizing.

FAQs

Can I use another nut instead of cashews?

Cashews blend into a wonderfully creamy texture, but you can experiment with soaked almonds or macadamia nuts. Just note the flavor and creaminess will vary slightly, so adjust the seasoning accordingly.

Is this tart gluten-free?

This particular recipe uses all-purpose flour, which contains gluten. However, you can substitute it with a gluten-free flour blend that behaves similarly for a delicious gluten-free version.

How do I know when the leeks are caramelized enough?

You want the leeks to be soft with a slight golden-brown color around the edges. They should smell sweet and fragrant, indicating their natural sugars have developed fully.

Can this tart be made in advance for parties?

Absolutely! This Vegan Leek Tart Recipe holds up beautifully refrigerated for a few days and tastes just as great reheated, making it a perfect make-ahead dish for entertaining.

What’s the best way to achieve a crispy crust?

Baking the tart on the oven’s lower rack with a metal tart pan helps conduct heat evenly, crisping the crust bottom while preventing sogginess. Using vegan butter in the dough also adds flakiness and flavor.

Final Thoughts

This Vegan Leek Tart Recipe is a truly special dish that brings comfort, flavor, and elegance to your table. From the luscious cashew cream to the beautifully caramelized leeks and flaky crust, every bite feels like a celebration of simple, wholesome ingredients. I encourage you to try making it yourself—once you do, it might just become a treasured favorite in your kitchen too!