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Cream/ Lunch

Creamy Roasted Cauliflower Soup

November 16, 2021 (Last Updated: December 14, 2022) by Chris Collins

This cauliflower soup is luxuriously creamy & smooth, easy to make and ultra delicious!

It’s funny, cauliflower wouldn’t even be in my top 5 favourite veg, but this soup is just pure magic. It brings out the absolute best in cauliflower and completely transforms it. It’s a simple soup, but a soup to win over the most cauliflower skeptic people among us. Follow me…

cauliflower soup served in small white bowl on marble background garnished with cheese and chives

Roasted Cauliflower

Cauliflower’s flavour is fairly subtle, so you don’t want it to get lost in the soup. It needs to be front and centre. One of the key steps to making this soup so delicious and ensuring you get the most out of the cauliflower is roasting it.

Why roast the cauliflower?

Although it’s an extra, it’s definitely worth it. By roasting the cauliflower you intensify the flavour and pick up a light bit of charring too, which in turn adds a subtle smoky flavour. Here I also roast the cauliflower with fresh thyme which adds even more flavour.

It doesn’t really take up too much time either, because whilst it’s roasting we can crack on with creating the base of the soup.

Process shots: combine cauliflower with thyme, olive oil, salt and pepper (photo 1), roast until lightly charred and fork tender (photo 2).

2 step by step photos showing how to roast cauliflower

Roasted Cauliflower Soup

When it comes to the soup itself, you really don’t need many ingredients at all.

Cauliflower Soup Ingredients

  • Roasted Cauliflower – As discussed above.
  • Onion & Garlic – Creates a nice flavour base for the soup.
  • Butter – Adds a richness to the soup and is perfect for sweating down the onion.
  • Stock – Here I’ve used veggie stock, but chicken stock would also work too.
  • Cream – Emphasizes the creaminess of the blended cauliflower.
  • Nutmeg – Very subtle, but compliments the cauliflower perfectly.

Simmering the soup

Although you’ve already cooked the cauliflower, you still want to simmer before you blend it. You want to allow the cauliflower to exchange flavours with the stock and marry everything together. Just 20mins will do the trick!

Process shots: fry onion and garlic in butter (photo 1), add roasted cauliflower (photo 2), pour in stock and simmer (photo 3), blitz with hand blender until smooth (photo 4), stir in cream (photo 5), stir in seasoning (photo 6).

6 step by step photos showing how to make cauliflower soup

Cauliflower FAQ

How do you store cauliflower soup?

Allow to completely cool then tightly store in the fridge. Reheat over low heat on the stove or short blasts in the microwave.

Can you freeze cauliflower soup?

Yes, I just recommend leaving the cream out until serving. Just to avoid it splitting. Thaw in fridge then reheat as above.

How do you thicken cauliflower soup?

If you go a little over board with the stock, the easiest way to thicken the soup is to simply simmer and it’ll gradually re-thicken.

close up shot of ladle in big pot of cauliflower soup

Serving Cauliflower Soup

I highly recommend serving up with:

  • Cheddar cheese – A grating of cheddar compliments this soup incredibly well. Cauliflower cheese anyone?!
  • Chives – Adds a pop of colour and adds a nice blast of flavour.
  • Cream – An extra drizzle of cream always goes nicely to emphasise the creaminess of the soup.
  • Cauliflower – I like to save a few pieces of cauliflower after roasting to serve up, just for garnish.

This soup is awesome as a starter, but just as great for Lunch or Dinner. A grilled cheese doesn’t go a miss either 😋

Alrighty, let’s tuck into the full recipe for this cauliflower soup shall we?!

close up shot of dunking grilled cheese into small white bowl of cauliflower soup

How to make Cauliflower Soup (Full Recipe & Video)

cauliflower soup served in small white bowl on marble background garnished with cheese and chives

Creamy Roasted Cauliflower Soup

This cauliflower soup is luxuriously creamy & smooth, easy to make and ultra delicious! This will very comfortably feed 4 for a hearty dinner. 6 for more of a lunch scenario or starter.
5 from 3 votes
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Servings (click & slide): 6
Course: Dinner / Lunch / Main Course / Starter
Cuisine: Universal
Prep Time: 15 minutes
Cook Time: 40 minutes
Total Time: 55 minutes
Calories per serving: 290kcal
Cost per serving: £1 / $1


  • Large Greaseproof Baking Tray
  • Large Pot with Lid
  • Hand Blender
  • Jug (for cream/stock)
  • Sharp Knife & Chopping Board
  • Cheese Grater

Ingredients (check list):

Roasted Cauliflower

  • 2lb / 1kg Cauliflower, diced into bite sized pieces (weight AFTER leaves/stalk removed - see notes)
  • 2-3 tbsp Olive Oil
  • 1 tbsp Fresh Thyme Leaves
  • 1/2 tsp Salt
  • 1/4 tsp Black Pepper


  • 4 cups / 1 litre Vegetable Stock, or more as needed
  • 1/2 cup / 120ml Double/Heavy Cream, at room temp
  • 2 tbsp Butter
  • 1 large Onion, finely diced
  • 3 cloves of Garlic, finely diced
  • 1/4 tsp Nutmeg
  • Salt & Black Pepper, to taste

To Serve

  • grated Cheddar Cheese
  • finely diced Fresh Chives
  • extra drizzle of Cream


  • Place cauliflower on a large baking tray and combine with olive oil, thyme, salt and black pepper. Roast in the oven at 200C/390F for 20-30mins, or until lightly charred and fork tender. Toss half way through. Save a few florets once roasted to serve (optional)
  • Meanwhile, melt 2 tbsp butter into a large pot of medium heat. Add onion and fry until soft and just starting to brown, then add in garlic and fry for another minute or so.
  • Add in cauliflower then pour in stock (just enough to cover the cauliflower at this point is fine). Pop the lid on and simmer for around 20mins to marry the flavours.
  • Turn off heat and blitz until smooth with a hand blender, adding more stock to thin out to preferred texture. Stir in cream then add 1/4 tsp nutmeg. Season well with salt and pepper.
  • Serve with an extra drizzle of cream, a sprinkling of cheddar and a pinch of chives. Enjoy!

Quick 1 min demo!


a) Cauliflower Weight - You need 1kg/2lb of cauliflower, NOT including the leaves and stalk. 1kg/2lb cauliflower florets is around 2 medium sized cauliflowers bought whole.
b) Serving - Highly recommend the cheddar and chives! This is a really simple soup and these compliment it really nicely. If you don't have chives you can just sprinkle over any leftover thyme leaves. This will very comfortably feed 4 for a hearty dinner. 6 for more of a lunch scenario or starter.
c) Storage - Allow to cool and tightly cover in the fridge. I find this stays good for around 3-4days. Reheat over low heat on the stove or in short blasts in the microwave (stirring in between).
d) Freezing - I do sometimes freeze this soup, but tend to leave the cream out and mix through just before serving, just to avoid the risk of it splitting. Thaw in the fridge then reheat as instructed above.
e) Calories - based on using 2.5 tbsp olive oil, no toppings and shared between 4 people:

Your Private Notes:


Nutrition Facts
Creamy Roasted Cauliflower Soup
Amount Per Serving
Calories 290 Calories from Fat 217
% Daily Value*
Fat 24.07g37%
Saturated Fat 10.778g54%
Trans Fat 0.004g
Polyunsaturated Fat 1.529g
Monounsaturated Fat 10.548g
Cholesterol 48mg16%
Sodium 404mg17%
Potassium 776mg22%
Carbohydrates 16.68g6%
Fiber 5.4g22%
Sugar 6.78g8%
Protein 5.81g12%
Vitamin A 587IU12%
Vitamin C 113.9mg138%
Calcium 89mg9%
Iron 1.33mg7%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition is based on the absence of salt unless stated as a measurement in the ingredients. Cost is worked out based on ingredients bought from UK supermarkets, then divided by the number of servings. In both instances these values are just for guidance. Please check out my FAQ Page for more info.
Tried this recipe?Show me how you got on by tagging @dontgobaconmyheart_ on IG and #dontgobaconmyheart
Looking for more?You'll find plenty more delicious comfort food like this in my Debut Cookbook 'Comfy'

For more cauliflower goodness check out my Parmesan Roasted Cauliflower!

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Recipe Rating


  • Reply
    January 27, 2023 at 2:34 pm

    5 stars
    My husband says this is one of the best soups he’s ever had, so thank you for yet another fantastic recipe.

  • Reply
    Audra Kauffman
    December 29, 2022 at 11:57 pm

    5 stars
    I’m a soup lover, and this is my favorite. I use chicken stock. My 8 and 13 year old sons love it, too!

    • Reply
      Chris Collins
      December 30, 2022 at 12:38 am

      Great to hear, Audra! Thanks so much for the review 🙂 C.

  • Reply
    Donna Bradley-Robinson
    June 25, 2022 at 5:39 am

    5 stars
    The BEST cauli soup recipe I have ever tried. Total winner in our home!

    • Reply
      Chris Collins
      June 25, 2022 at 4:17 pm

      So great to hear, Donna! 🙂

  • Reply
    Jody Corbett
    May 16, 2022 at 4:04 am

    Just made this tonight, I used half veg and half chicken bbroth. Thanks for sharing, delicious.

    • Reply
      Chris Collins
      May 20, 2022 at 1:33 pm

      Great to hear it went down well, Jody!