Roasted Cauliflower and Garlic Soup

By Sally Cameron on October 22, 2013

Featured 3, gluten-free, slide, soups, stews & chilies, the daniel plan, vegan, vegetables, vegetarian,


Toss cauliflower florets and whole garlic cloves with olive oil, then roast and puree. It’s the base for a creamy, thick and comforting roasted cauliflower garlic soup. If you are a garlic lover, the smell of the roasting garlic cloves just might make you crazy. It’s heavenly.

Roasting Vegetables – Sweet Flavors

Roasting vegetables brings out their sweet qualities and caramelizes their flavors. I am always looking for ways to get more vegetables into our diet, especially non-starchy vegetables. Cauliflower is one of those terrific, non-starchy vegetables I’ve rediscovered from when I was a kid. For this new recipe, I’ve pureed it along with leeks, carrots, celery and herbs for a great soup.

Healthy Cruciferous Cauliflower

Cauliflower is a member of the cruciferous vegetable family which includes broccoli, Brussels sprouts, kale, cabbage, and bok choy. A healthy option to add to your diet, cauliflower is loaded with vitamins, minerals, fiber and disease-fighting phytonutrients. And all cruciferous vegetables have been linked in many studies for reducing the risk of cancer.

cauliflower florets

Vegetable Prep

Trim any outer leaves then cut the core from a head of broccoli. Break the head into small florets., trimming any extra stem. Scatter the cauliflower into a large baking dish and add whole, peeled garlic cloves. Toss with olive oil and roast until tender when pierced with the tip of a paring knife and edges are starting to brown.

While the vegetables are roasting, cook the aromatics (leek, carrot, celery, thyme) softly and gently in a pot to coax out their sweet flavors.

roasted cauliflower

Finish the Soup

When vegetables are done roasting, add cauliflower and broth to the pot and simmer until flavors have blended and all vegetables are tender, about 10 minutes. Puree with coconut milk, in a food processor or Vitamix, season and serve.

This creamy soup gets it’s texture from the pureed vegetables and from the coconut milk. If you have never tried coconut milk in a soup recipe like this, know that it does not taste like coconut at all. Leftovers reheat great the next day.

For garnish, I thin basil pesto down with a little coconut milk and swirl it into the soup, then drizzle with drops of golden olive oil. If you are vegan, make the pesto without Parmesan cheese. it will be more like the French version of pesto called pistou.

One more tidbit, we’ve discovered that this soup is terrific finished with Maldon Smoked Sea Salt. Maybe it’s because we are crazy about smoky flavors, but it really takes it over the top.

Cualiflower Soup

Tips on Buying Cauliflower

The most common color is white, although you will see orange, green and even purple varieties. When buying cauliflower, choose head that are firm and white with no brown spots or areas. Florets should not be exasperated. Heads protected by a layer of green leaves are more protected. Cauliflower will last in the refrigerator about a week.

Other Helpful Links and Information

The Super-Veggies: Cruciferous Vegatables

All about cauliflower and the health benefits

The Le Creuset 5 1/2 quart Dutch Oven is a classic soup pot, and you can use it for lots more than soup. Mine is in constant use. Great investment. This color is fennel green.

Print Recipe

Roasted Cauliflower and Garlic Soup

This thick and creamy soup will remind you of potato soup, but its healthier. Make it as thick or thin as you prefer by adding more coconut milk or broth. For garnish, add a swirl of thinned basil pesto and a drizzle of olive oil. For a vegan soup, use vegetable broth and pesto made without Parmesan. For an over-the-top finish, sprinkle with Maldon smoked sea salt when serving.


  • 1 large head of cauliflower about 2 1/2 pounds or a little over 1 kilo
  • 14 cloves of garlic 1 large head, whole, peeled
  • 3/4 teaspoon salt
  • 1/4 teaspoon ground black pepper
  • 4 tablespoons olive oil divided use
  • 1 cup thinly sliced leek white or pale green part only
  • 1/2 cup chopped carrot
  • 1/2 cup chopped celery
  • 1 teaspoon dried thyme
  • 3 cups broth chicken or vegetable
  • 1 can coconut milk 15 ounces, 425 grams


  1. Pre-heat oven to 400° (204 C). Cut the outer green leaves and core from the head of cauliflower. Break the head into small florets, cutting stems as needed. Add florets and garlic cloves to a bowl and toss with  3 tablespoons olive oil, salt and pepper. Pour vegetables into a large rectangular baking dish. Roast until florets are tender when pierced with the tip of a sharp paring knife and edges are starting to brown, about 30 minutes. You may want to stir half of the way through.
  2. While cauliflower is roasting, cook leek, carrot, celery and thyme in a large pot with last tablespoon of olive oil over medium-low heat, covered, until tender, about 10 minutes.
  3. When the cauliflower is done roasting, add to the pot of vegetables and add broth. Bring to almost a boil, then turn heat down and simmer for 10 minutes.
  4. Pour vegetables into a food processor or Vitamix and puree with coconut milk until smooth. Taste and add additional salt and pepper as desired. Serve hot. See post for garnish notes.
  5. Note – Extra soup keeps covered and refrigerated for a few days and can be made ahead, then heated.


Leave a Comment
Nancy@acommunaltable | 10/22/2013 at 10:20 am

Sally – this looks soooo good! I adore roasted cauliflower and this soup would totally satisfy my urge for a creamy soup!

    Sally | 10/22/2013 at 10:28 am

    Thanks Nancy! It is really rich and creamy, and non-dairy! Did it with coconut milk! Used Native Forest organic. The roasted garlic really makes it. For garlic lovers, you can add more.

Madonna/aka/Ms. Lemon | 10/22/2013 at 10:27 pm

What Nancy said. I am making my shopping list now. Love your new green pot.

Christine (CookTheStory) | 12/15/2013 at 3:36 pm

Your soup looks so delicious. I like the pesto swirl idea.

Linda | 01/01/2014 at 4:28 am

Hi Sally,

I want to try this soup, but I can’t seem to get beyond the roasted cauliflower part because my family likes eating it just like that! I never got them to eat a whole head of cauliflower before when I made it. I will try the soup soon though and will let you know how they like it. Thanks again for the recipe!

    Sally | 01/01/2014 at 2:12 pm

    Can’t wait to hear if they enjoy the soup! Great that they like cauliflower.

Linda | 01/09/2014 at 3:50 pm

Yes they did like the soup. I finally made it a couple of days ago with a head of golden cauliflower, and I skipped the pesto as I didn’t have any. They found it quite filling and I felt that it tasted better the 2nd day. I think the flavors seemed more enhanced. Thanks for the recipe!

chef | 01/11/2014 at 12:36 pm

made this soup today,
had to stop the whole family licking the bowl

    Sally | 01/11/2014 at 1:44 pm

    Love to hear that! Then you might like the recipe I am hoping to post tomorrow. It has roasted cauliflower in it.

Lawrence | 03/08/2014 at 2:47 am

Sensational – the only word to describe this soup!!

JOANNE HOLIDAY-DALE | 04/05/2014 at 1:58 pm

I can’t wait to try this. I’m cooking this as I write you and it smells heavenly!! I followed your recipe to the letter. The next time I may add fresh ginger or some cumin. I’m trying to incorporate some anti-inflammatory herbs and spices into my diet.

Annette | 05/07/2014 at 6:22 pm

Wow! What a fabulous soup!! Definitely a keeper!

Mariann Thompson | 09/28/2016 at 12:53 pm

I’m making this now. I’m going to add crumbled bacon to it for garnish. YUM!!!

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