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Air Fryer One-Pot Creamy Cauliflower and Leek Soup
By Airfryfeast Test KitchenReviewed by Airfryfeast Editorial TeamPublished May 6, 2026 · Updated Jun 19, 2026
American
30 mins
air-fryer-friendlyone-potdairy-freehealthyeasygluten-freecomfort-foodfamily-friendlyfreezer-friendly30-minutes-or-lessv2
Enjoy this comforting, healthy, and dairy-free Air Fryer One-Pot Creamy Cauliflower and Leek Soup. Roasting the cauliflower and leeks in your air fryer unlocks a rich, caramelized flavor while keeping the soup light, gluten-free, and family-friendly. Ready in under 30 minutes, this freezer-friendly, easy side dish is perfect for weeknight dinners and cozy meals.
Prep
10 min
Cook
20 min
Total
30 min
Servings
4
Difficulty
easy
Cuisine
American
Ingredients
Servings
4
- 1 medium head cauliflower, cut into bite-sized florets
- 2 medium leeks, white and light green parts only, sliced and separated
- 1 tablespoon olive oil
- 1 teaspoon sea salt
- 1/2 teaspoon freshly ground black pepper
- 1 teaspoon garlic powder
- 4 cups vegetable broth (gluten-free if preferred)
- 1 cup unsweetened coconut milk or other dairy-free milk
- 1 tablespoon nutritional yeast (optional, for a subtle cheesy flavor)
- 1 teaspoon dried thyme
- 1/2 teaspoon smoked paprika
- Fresh chives or parsley, finely chopped, for garnish
Instructions
-
Preheat your air fryer to 400°F (200°C) for 3-5 minutes.
-
In a large bowl, toss the cauliflower florets and sliced leeks with olive oil, sea salt, black pepper, and garlic powder until evenly coated.
-
Spread the cauliflower and leeks in a single layer in the air fryer basket. Roast for 12-15 minutes, shaking or stirring halfway through, until the vegetables are tender and lightly caramelized.
-
While the vegetables roast, heat the vegetable broth in a large pot over medium heat.
-
Once roasted, carefully transfer the cauliflower and leeks into the hot broth. Bring the mixture to a gentle simmer.
-
Add dried thyme, smoked paprika, and nutritional yeast (if using) to the pot. Stir well and let simmer for 5 minutes to allow flavors to meld.
-
Remove the pot from heat. Using an immersion blender, carefully puree the soup until smooth and creamy. Alternatively, transfer the soup in batches to a blender, puree until smooth, then return to the pot.
-
Stir in the dairy-free milk until fully incorporated. Taste and adjust seasoning with additional salt or pepper if needed.
-
Ladle the soup into bowls and garnish with freshly chopped chives or parsley before serving.
-
To freeze, cool the soup completely and store in airtight containers for up to 3 months. Reheat gently on the stove or microwave before serving.
Tips
Air Fryer Model Notes
Cook Air Fryer One-Pot Creamy Cauliflower and Leek Soup in a single layer when possible. Basket models may need batches; oven-style models may need a tray rotation halfway through for even browning.
Crispiness Control
Pat the head cauliflower dry, avoid crowding, and use only a light coat of oil or sauce before cooking. Add wet sauces near the end when you want the outside to stay crisp.
Doneness Cues
Look for browned edges, a hot center, and the texture described in the instructions.
Reheat In The Air Fryer
Reheat leftovers at 325 F to 350 F in a single layer until hot and crisp again. Add fresh herbs, citrus, or sauce after reheating.
Frequently Asked Questions
- Can I make Air Fryer One-Pot Creamy Cauliflower and Leek Soup ahead of time?
- You can prep the ingredients and seasoning ahead, but air fry close to serving for the best texture.
- How do I keep this recipe from turning soggy?
- Cook in a single layer, leave space for airflow, and avoid adding too much oil or sauce before the food has crisped.
- Can I adjust the seasoning?
- Yes. Keep the same cooking method and adjust salt, spice, herbs, citrus, or sauce to match your taste.
- How do I know the head cauliflower is done?
- Use the visual cues in the instructions first: the outside should be browned or crisp and the center should be hot and tender. For meat or seafood, confirm doneness with a food thermometer.
Ingredient Replacements
Customize this Air Fryer One-Pot Creamy Cauliflower and Leek Soup to fit dietary preferences or ingredient availability with these simple swaps:
- Cauliflower: Substitute with broccoli florets for similar texture and a vibrant green color.
- Leeks: Replace with sliced onions or shallots to maintain the aromatic base.
- Olive Oil: Use avocado or coconut oil for different flavor profiles while preserving dairy-free status.
- Vegetable Broth: Swap with chicken broth for added richness (non-vegetarian), or use homemade bone broth while keeping gluten-free options.
- Unsweetened Coconut Milk: Alternate with almond, cashew, or other dairy-free milks.
- Nutritional Yeast (optional): Omit or replace with grated vegan parmesan for a gourmet cheesy note.
- Seasonings: Experiment with rosemary, sage, or cumin instead of thyme and smoked paprika for different savory nuances.
These easy ingredient replacements maintain the soup’s healthy, gluten-free, dairy-free profile—perfect for quick, family-friendly weeknight dinners or freezer-friendly meal prep.
Storage
Store leftover Air Fryer One-Pot Creamy Cauliflower and Leek Soup in an airtight container in the refrigerator for up to 3 days. Cool the food before sealing so excess steam does not soften the texture.
Freeze only if the main ingredient and coating are freezer-friendly. Wrap tightly and freeze for up to 1 month, then thaw overnight in the refrigerator before reheating.
Reheat in the air fryer at 325 F to 350 F in a single layer until hot and crisp again. Add fresh herbs, citrus, or sauce after reheating for the best flavor.
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