Instant Pot Vegan Potato Leek Soup Recipe

I absolutely love cozying up with a warm bowl of homemade soup, and this Instant Pot Vegan Potato Leek Soup Recipe hits all the right notes for me. It’s incredibly smooth and velvety without any dairy, relying on blended cashews to create that luscious texture. The subtle herbes de Provence add this wonderful fragrant twist that makes it feel both comforting and a little fancy at the same time. What’s best is how quickly everything comes together in the Instant Pot, so I get a delicious, nourishing meal in just about 30 minutes!

Why You'll Love This Instant Pot Vegan Potato Leek Soup Recipe

I’m always on the lookout for recipes that bring out big, satisfying flavors without requiring a ton of fuss in the kitchen, and this soup does exactly that. The potatoes provide a creamy base, while the leeks give a gentle onion-like sweetness that’s perfectly balanced by the aromatic herbes de Provence. Together, they create a flavor profile that’s both soothing and sophisticated. I love that it feels special but is still comforting enough for a weeknight dinner.

Another reason I’m so fond of this Instant Pot Vegan Potato Leek Soup Recipe is how effortless the preparation is. Using the Instant Pot not only speeds up cooking time but also intensifies the flavors. You just sauté the leeks, add the rest of the ingredients, and let the pot do the work while you prep the cashew cream in your blender. It’s great for busy days when you want a wholesome meal without the usual long cooking times. Plus, it’s perfect for any occasion—whether you’re serving family, entertaining friends, or just indulging in self-care on a chilly afternoon.

Ingredients You'll Need

The beauty of this soup lies in its simplicity—each ingredient is essential and adds something unique. Potatoes give you body and creaminess; leeks bring sweetness and depth; herbs and seasonings elevate the flavor; and cashews transform the broth into an indulgent, silky texture. These straightforward ingredients combine brilliantly to create a rich, satisfying dish with minimal effort.

• Extra virgin olive oil: This adds a lovely, subtle richness and helps soften the leeks during sautéing.
• Leeks: Make sure to clean them well since dirt can hide in their layers; they provide a gentle, sweet foundation.
• Gold potatoes: Their natural creaminess is key to the velvety body of the soup.
• Vegetable broth: Adds depth and umami without overpowering the delicate flavors of the leeks and potatoes.
• Bay leaf: A little herbal boost that infuses the soup with a fragrant background note.
• Herbes de Provence: This mix of herbs brings that signature French-inspired aroma and taste.
• Raw cashews: Blended with water, cashews give the soup a creamy, dairy-free texture that feels indulgent.
• Salt and pepper: Essential seasonings to bring everything alive and balanced.
• Green onions or chives (optional): Fresh garnish that adds color and a mild, oniony crunch.

Directions

Step 1: Turn on your Instant Pot and select the Sauté function. Add the extra virgin olive oil and let it heat up for a minute. Toss in the cleaned and chopped leeks, stirring often, and sauté until they are very soft and fragrant—this usually takes about 5 to 7 minutes. The softness of the leeks is crucial for building the soup’s flavor base.

Step 2: Press Cancel on the Sauté function to stop the cooking process. Add the diced potatoes, vegetable broth, bay leaf, and herbes de Provence directly into the pot. Give everything a gentle stir to combine, then securely close and lock the lid.

Step 3: Set your Instant Pot to the Pressure Cooker function on high pressure and cook for 4 minutes. It might feel quick, but this short time cooks the potatoes perfectly without turning them mushy.

Step 4: While the soup cooks, prepare the cashew cream. Combine the raw cashews and water in a high-speed blender. Blend until completely smooth, scraping the sides as needed. The cashew blend is what lends that velvety creaminess without any dairy.

Step 5: Once the Instant Pot cooking cycle ends, perform a quick release to let the pressure out immediately. Carefully remove and discard the bay leaf from the pot.

Step 6: Using an immersion blender (or a regular blender in batches), puree the soup until it’s completely smooth and creamy. The texture should be silky and luscious.

Step 7: Slowly stir in the cashew cream mixture to the pureed soup, mixing until fully incorporated. Season generously with salt and pepper to taste.

Step 8: Ladle the soup into bowls and garnish with thinly sliced green onions or chives if desired. Serve immediately and enjoy the comforting warmth!

Servings and Timing

This Instant Pot Vegan Potato Leek Soup Recipe makes about 4 generous servings, perfect for a cozy family meal or leftovers the next day. From start to finish, it takes roughly 30 minutes—about 10 minutes to prep the ingredients and sauté the leeks, then 20 minutes for cooking and blending. There’s no extended resting time needed, so you can dig in right away once it’s done.

How to Serve This Instant Pot Vegan Potato Leek Soup Recipe

When I serve this potato leek soup, I like to keep things simple yet inviting. A crusty baguette or some warm gluten-free bread alongside works wonderfully to soak up every last drop of the creamy soup. You could also add a fresh green salad with a tangy vinaigrette to balance the richness of the soup. For extra texture, sprinkle toasted pumpkin seeds or chopped toasted nuts over the top.

For garnishes, I’m a fan of fresh herbs like chopped chives or green onions, which add a lovely pop of color and a fresh contrast to the velvety texture. A drizzle of olive oil or a sprinkle of smoked paprika gives the presentation a professional touch. I typically serve this hot, right out of the pot, but it’s equally delicious warmed up the next day or even slightly cooled on warmer days for a different experience.

When it comes to beverages, a crisp white wine like Sauvignon Blanc pairs beautifully, as does a light, herbal tea for a soothing, non-alcoholic option. I’ve also enjoyed it with a cold kombucha or sparkling water infused with lemon for a refreshing complement. This soup shines at weeknight dinners, casual gatherings, or anytime I want something nourishing and comforting that feels a bit elevated.

Variations

I love experimenting with this Instant Pot Vegan Potato Leek Soup Recipe to suit different moods and dietary needs. For example, if you want a nuttier flavor, swapping the raw cashews for soaked macadamia nuts works wonderfully and adds richness. If you’re nut-free, you can replace the cashew cream with canned coconut milk for a slight tropical twist that’s still creamy but dairy-free.

If you want to add a bit more green, stirring in some fresh spinach or kale just before serving gives the soup added nutrition and color without overpowering those mellow leek and potato flavors. For an extra savory punch, sauté some finely chopped garlic with the leeks or add a splash of tamari or soy sauce to the broth.

I’ve also tried making this soup on the stovetop, simply simmering the ingredients until tender and blending at the end, which works well if you don’t have an Instant Pot. The pressure cooker just happens to speed things up dramatically. For a twist, you can roast the potatoes and leeks before adding to the broth, bringing out deeper caramelized flavors. The variations are endless and always delicious.

Storage and Reheating

Storing Leftovers

Leftover soup keeps beautifully in an airtight container in the refrigerator for up to 4 days. I find glass containers with tight-fitting lids work best because they don’t absorb flavors and are easy to reheat right in the microwave or on the stovetop. Make sure the soup has cooled to room temperature before sealing the container to avoid condensation buildup.

Freezing

This soup freezes very well if you want to save portions for later. Just let the soup cool completely, then transfer it to freezer-safe containers or heavy-duty resealable bags. It should keep well for up to 3 months in the freezer. When you’re ready to enjoy it, thaw overnight in the refrigerator before reheating gently to maintain texture and flavor.

Reheating

To reheat, I recommend warming the soup slowly over low to medium heat on the stovetop, stirring frequently to prevent sticking and help the creaminess return perfectly. You can also microwave it in short bursts, stirring in between. Avoid boiling the soup after blending since that can cause the texture to separate or become grainy. If the soup thickens too much after refrigeration, just add a splash of vegetable broth or water to loosen it back up.

FAQs

Can I use other types of potatoes for this soup?

Absolutely! While gold potatoes are great for their creamy texture, you can use russets for a fluffier result or Yukon gold potatoes for a buttery flavor. The main thing is to choose potatoes that mash well and cook quickly to keep the soup velvety smooth.

Is this soup truly vegan and gluten-free?

Yes! This Instant Pot Vegan Potato Leek Soup Recipe uses only plant-based ingredients and is naturally gluten-free as long as you choose a gluten-free vegetable broth. It’s a perfect option for many dietary needs without sacrificing flavor.

Can I make this soup without an Instant Pot?

Definitely. You can sauté the leeks and then simmer the potatoes in broth on the stovetop until tender, about 20-25 minutes. Then blend and add the cashew cream as instructed. The Instant Pot just speeds up the cooking process and deepens flavors a bit.

What can I substitute for cashews if I have allergies?

A good alternative is canned coconut milk, which adds creaminess but a slightly different flavor. If you prefer a nut-free and coconut-free option, try soaked sunflower seeds blended with water, though the texture may be a bit thinner.

How do I adjust the seasoning if the soup tastes bland?

Taste the soup after blending and adding the cashew cream. If it needs a boost, add more salt and freshly ground black pepper in small increments. A squeeze of lemon juice also brightens the flavors wonderfully. Remember, seasoning is key to making the flavors pop!

Conclusion

I hope you’ll give this Instant Pot Vegan Potato Leek Soup Recipe a try soon, especially if you’re craving something warm, creamy, and effortlessly delicious. It’s one of those dishes that feels like a big hug in a bowl, with nourishing ingredients and vibrant flavor all wrapped up in one. I can’t wait to hear how it brings comfort and joy to your table as much as it does to mine!

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