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This creamy vegan cauliflower soup delivers a wonderfully smooth, thick texture without any dairy.
Cauliflower forms the mild, comforting base, while raw cashews and cannellini beans give the soup its rich body and satisfying consistency.
Nutritional yeast adds a savory depth that complements the vegetables, while onion and garlic build a flavorful foundation as they gently cook until golden and aromatic.
Fresh thyme, rosemary, and bay leaf are bundled together as a bouquet garni, allowing their herbal character to infuse the broth without leaving pieces throughout the finished soup.
Low-sodium vegetable broth provides the main cooking liquid, while a little water keeps the mixture balanced as the cauliflower, beans, and cashews simmer together.
After cooking, the bouquet garni is removed and the soup is blended until thick and creamy.
A stand blender produces the smoothest texture, although an immersion blender can also be used.
The finished soup is seasoned to taste, then brightened with fresh lemon zest, crushed red pepper flakes, and a drizzle of good-quality extra virgin olive oil.
The toppings are an important part of the final presentation and flavor, adding brightness, gentle heat, and richness to every bowl.
Served alongside bread, this soup makes a comforting plant-based meal that works especially well for an easy weeknight dinner.
It can also be frozen, making it a practical option for preparing meals ahead of time.
Creamy Vegan Cauliflower Soup
Ingredients
Equipment
Method
- Soak the Cashews: Place the raw cashews in a bowl and pour boiling water over them until completely covered. Let them stand for 15 minutes, then drain and rinse thoroughly.
- Prepare the Vegetables: While the cashews soak, finely chop the onion, roughly chop the garlic, and cut the cauliflower into large florets. Prepare the fresh herbs and remaining ingredients so everything is ready before cooking.
- Make the Bouquet Garni: Use kitchen twine to securely tie the thyme sprigs, rosemary sprig, and bay leaf together into a small bundle.
- Sauté the Onion: Heat the olive oil in a large Dutch oven or soup pot over medium heat.Add the onion with a pinch of salt and cook for 8–10 minutes, stirring occasionally, until the onion becomes golden brown. If it begins browning too quickly, add a splash of water.
- Cook the Garlic: Add the roughly chopped garlic to the golden onion and cook for 2–3 minutes, stirring frequently, until fragrant.
- Deglaze the Pot: Pour in some of the vegetable broth and stir thoroughly, scraping up any browned bits from the bottom of the pot.
- Add the Soup Ingredients: Pour in the remaining vegetable broth and water. Add the soaked cashews, cauliflower florets, drained cannellini beans, nutritional yeast, kosher salt, and freshly cracked black pepper to taste. Stir everything together.
- Add the Herbs: Gently tuck the bouquet garni into the broth. The cauliflower does not need to be completely submerged because it will cook down as the soup simmers.
- Simmer the Soup: Bring the soup to a boil, then reduce the heat to maintain a rapid simmer.Cook for 15 minutes, or until the cauliflower is tender and soft.
- Remove the Bouquet Garni: Once the cauliflower is fully tender, carefully remove the thyme, rosemary, and bay leaf bundle from the pot.
- Blend the Soup: Transfer the soup to a stand blender in two batches. Remove the blender’s center cap and cover the opening with a dish towel to allow steam to escape. Blend until the soup is completely smooth, thick, and creamy. An immersion blender can also be used, although the resulting texture will not be as smooth.
- Adjust the Seasoning: Taste the blended soup and adjust the salt and black pepper as needed. Add more salt at this stage if necessary.
- Finish the Soup: Ladle the hot soup into bowls. Before serving, grate fresh lemon zest over each portion, scatter with crushed red pepper flakes or Aleppo pepper, and drizzle with good-quality extra virgin olive oil.
- Serve: Serve the creamy cauliflower soup with bread if desired.
Notes
- Soak the raw cashews in boiling water for 15 minutes before draining and rinsing them. This helps them blend into the soup.
- Keep the bouquet garni tied securely with kitchen twine so the herbs and bay leaf can be removed easily before blending.
- Cook the onions for the full 8–10 minutes, stirring occasionally, until they become golden brown. If they brown too quickly, add a splash of water.
- The cauliflower does not need to be completely covered by the broth. It will soften and cook down during the 15-minute simmer.
- For the smoothest texture, blend the soup in two batches using a stand blender. Leave the center cap open and cover it with a dish towel so steam can escape.
- If using an immersion blender, the soup will still become creamy, but its texture will not be as smooth as when blended in a stand blender.
- Taste the soup after blending and adjust the salt and black pepper before serving.
- Finish each bowl with lemon zest, crushed red pepper flakes or Aleppo pepper, and extra virgin olive oil for brightness, gentle heat, and richness.
Chef’s Secret
The key to getting this cauliflower soup exceptionally creamy is to give the cashews enough time to soften before they go into the pot.
Pour boiling water over them and let them stand for the full 15 minutes, then drain and rinse them well.
Once cooked with the cauliflower, beans, broth, and herbs, the softened cashews blend into the soup and help create its thick, velvety consistency.
When blending in a stand blender, work in two batches rather than overfilling the blender.
Removing the center cap is also important because it allows steam to escape while the dish towel helps contain splashes.
Blend until completely smooth before adjusting the seasoning.
Serving Suggestions
Serve the soup hot with crusty bread for dipping into the creamy broth.
Just before serving, add fresh lemon zest, a scattering of crushed red pepper flakes or mild Aleppo pepper, and a generous drizzle of good-quality extra virgin olive oil.
These finishing touches provide brightness, gentle heat, and richness against the mild cauliflower base.
For a simple presentation, ladle the soup into individual bowls and add the toppings immediately before serving so their flavors remain fresh and distinct.
Conclusion
This creamy vegan cauliflower soup combines tender cauliflower, cashews, cannellini beans, nutritional yeast, garlic, and fresh herbs into a thick, satisfying bowl without dairy.
The smooth texture pairs beautifully with bright lemon zest, chili flakes, and extra virgin olive oil.
With straightforward preparation and a 45-minute total time, it makes a comforting option for an easy plant-based meal.
Serve it alongside bread for a simple, satisfying finish that highlights the soup’s rich, savory character.
