Creamy Onion Cauliflower Soup

Featured in: Hearty Breakfasts

This velvety soup combines the natural sweetness of onions with tender cauliflower, gently simmered and blended to creamy perfection. Olive oil and a hint of garlic provide depth, while almond milk enriches without heaviness. Garnished simply with herbs or a swirl of cream, it offers a light, comforting dish suitable for vegetarian and gluten-free diets. The preparation is straightforward, making it ideal for a quick, wholesome meal anytime.

Updated on Mon, 16 Feb 2026 15:36:52 GMT
A steaming bowl of creamy onion and cauliflower soup, garnished with fresh chives and a drizzle of olive oil.  Save to Pinterest
A steaming bowl of creamy onion and cauliflower soup, garnished with fresh chives and a drizzle of olive oil. | krispyrecipes.com

Warm up your kitchen with the enticing aroma of sweet onions and earthy cauliflower simmering in a savory broth. This Creamy Onion and Cauliflower Soup is a masterpiece of simplicity, transforming humble ingredients into a velvety, sophisticated dish that feels like a warm hug in a bowl. Whether you are looking for a light lunch or a comforting starter, this recipe delivers a rich texture and delicate flavor profile without the need for heavy carbs.

A steaming bowl of creamy onion and cauliflower soup, garnished with fresh chives and a drizzle of olive oil.  Save to Pinterest
A steaming bowl of creamy onion and cauliflower soup, garnished with fresh chives and a drizzle of olive oil. | krispyrecipes.com

This soup is a fantastic way to enjoy the nutritional benefits of cauliflower, providing a wealth of vitamins while remaining gluten-free. The slow-sautéed onions add a subtle sweetness that balances the savory garlic and celery, creating a complex taste that belies the easy preparation process.

Ingredients

  • Vegetables
  • 1 medium head cauliflower (about 600 g), cut into florets
  • 2 large yellow onions, sliced
  • 2 cloves garlic, minced
  • 1 stalk celery, chopped
  • Liquids
  • 900 ml (4 cups) low-sodium vegetable broth
  • 250 ml (1 cup) unsweetened almond milk (or heavy cream for extra richness)
  • Fats & Seasonings
  • 2 tbsp olive oil or unsalted butter
  • 1/2 tsp sea salt (plus more to taste)
  • 1/4 tsp ground white or black pepper
  • Pinch of freshly grated nutmeg (optional)
  • Garnish (optional)
  • Chopped chives or parsley
  • A swirl of cream or olive oil
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Instructions

Step 1
Heat olive oil or butter in a large pot over medium heat. Add onions and celery. Sauté for 8–10 minutes until onions are soft and translucent.
Step 2
Add garlic and cook for 1 minute until fragrant.
Step 3
Add cauliflower florets and sauté for another 2 minutes.
Step 4
Pour in vegetable broth. Bring to a boil, then reduce heat, cover, and simmer for 20 minutes, until cauliflower is very tender.
Step 5
Remove from heat. Use an immersion blender to puree the soup until smooth and creamy. Alternatively, blend in batches in a countertop blender.
Step 6
Stir in almond milk (or cream), salt, pepper, and nutmeg if using. Warm gently over low heat. Adjust seasoning to taste.
Step 7
Serve hot, garnished with chives, parsley, or a swirl of cream if desired.

Zusatztipps für die Zubereitung

To ensure the smoothest consistency, make sure the cauliflower is very tender before blending. If you are using a countertop blender instead of an immersion blender, remember to blend in small batches and hold the lid down with a towel to prevent any hot splashes. Always check your seasoning at the end, as the sweetness of the onions can vary.

Varianten und Anpassungen

For a decadent version, substitute the almond milk with heavy cream and stir in a handful of grated Parmesan or Gruyère cheese. If you prefer a strictly vegan meal, ensure you use olive oil and almond milk. You can also experiment with different herbs like thyme or rosemary for a more herbal aroma.

Serviervorschläge

This soup is wonderfully versatile and pairs beautifully with a crisp green salad for a light dinner. For a bit of texture, you could top it with homemade gluten-free croutons or toasted sunflower seeds. A final swirl of high-quality olive oil and a sprinkle of fresh chives adds a professional touch to your presentation.

Velvety pureed cauliflower and caramelized onions create a comforting, low-carb soup, perfect for a light dinner.  Save to Pinterest
Velvety pureed cauliflower and caramelized onions create a comforting, low-carb soup, perfect for a light dinner. | krispyrecipes.com

Indulge in this healthy yet creamy cauliflower soup tonight. It's a quick, 45-minute recipe that brings gourmet flavor to your table with minimal effort. Enjoy the smooth texture and the subtle hint of nutmeg that makes every spoonful a delight.

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Common Recipe Questions

Can I use dairy-free milk alternatives in this soup?

Yes, unsweetened almond milk is used here, but you can substitute with oat or soy milk for a similar creamy texture.

How can I make the soup richer in flavor?

Adding heavy cream instead of almond milk or stirring in grated Parmesan enhances richness and depth.

What vegetables are essential for this soup?

Cauliflower and sweet yellow onions provide the base, complemented by garlic and celery for flavor complexity.

Is this soup suitable for low-carb diets?

Yes, it focuses on cauliflower and onions which are low in carbohydrates, making it a compatible choice.

What garnishes work well with this soup?

Chopped fresh herbs like chives or parsley, and a swirl of cream or olive oil add attractive flavor and texture contrasts.

Creamy Onion Cauliflower Soup

Velvety soup combining sweet onions and tender cauliflower for a light, low-carb meal with rich flavor.

Prep Duration
15 minutes
Cooking Duration
30 minutes
Overall Time
45 minutes
Created by Mia Harper

Recipe Type Hearty Breakfasts

Skill Level Easy

Cuisine Type International

Total Portions 4 Serving Size

Dietary Considerations Veggie-Friendly, No Gluten, Low-Carbohydrate

What You’ll Need

Vegetables

01 1 medium head cauliflower (about 21 oz), cut into florets
02 2 large yellow onions, sliced
03 2 cloves garlic, minced
04 1 stalk celery, chopped

Liquids

01 4 cups low-sodium vegetable broth
02 1 cup unsweetened almond milk or heavy cream

Fats & Seasonings

01 2 tablespoons olive oil or unsalted butter
02 1/2 teaspoon sea salt, plus more to taste
03 1/4 teaspoon ground white or black pepper
04 Pinch of freshly grated nutmeg

Garnish

01 Chopped chives or parsley
02 Swirl of cream or olive oil

How to Make It

Step 01

Sauté aromatics: Heat olive oil or butter in a large pot over medium heat. Add onions and celery, sautéing for 8 to 10 minutes until onions are soft and translucent.

Step 02

Bloom garlic: Add minced garlic and cook for 1 minute until fragrant.

Step 03

Toast cauliflower: Add cauliflower florets and sauté for 2 minutes.

Step 04

Simmer vegetables: Pour in vegetable broth and bring to a boil. Reduce heat, cover, and simmer for 20 minutes until cauliflower is very tender.

Step 05

Purée soup: Remove from heat. Use an immersion blender to purée the soup until smooth and creamy. Alternatively, blend in batches using a countertop blender.

Step 06

Finish and season: Stir in almond milk or cream, salt, pepper, and nutmeg. Warm gently over low heat and adjust seasoning to taste.

Step 07

Serve: Transfer to bowls and garnish with chives, parsley, or a swirl of cream.

Tools You’ll Need

  • Large soup pot
  • Immersion blender or countertop blender
  • Chef's knife
  • Cutting board
  • Ladle

Possible Allergens

Double-check each ingredient for allergens and consult an expert if you're unsure.
  • Contains tree nuts from almond milk; substitute with oat milk for nut allergy concerns
  • Contains dairy if using butter or cream
  • Always verify product labels for potential allergen cross-contamination

Nutritional Information (per serving)

This data is for informational purposes and shouldn't replace professional advice.
  • Calorie Count: 110
  • Total Fat: 6 grams
  • Total Carbohydrates: 11 grams
  • Protein Content: 4 grams