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Roasted Cauliflower Soup

Kathleen

by Kathleen Pope Oct 18, 2023

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Before you turn your nose down to this lovely Roasted Cauliflower Soup, give it a chance. Full of healthy veggies, broth, a splash of cream and cheddar cheese, it is the very essence of fall and winter.

Roasted Cauliflower Soup

Creamy, healthy, warming and oh-so flavorful cauliflower soup! A great meal chilly evening. Chunks of roasted cauliflower, roasted garlic, seasonings in a chicken broth base blended together and topped with croutons and cheese! #thefreshcooky #cauliflower #soup #creamy #comfortfood
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The next few weeks I’ll be posting a couple of delicious, heart-warming soups. This is one of my favorites, a super simple and yet, oh-so-flavorful roasted cauliflower and garlic soup. I’ve been making this recipe for years; it’s a mash-up between two recipes, one from Rachel Ray and the other from Closet Cooking, I took the best of both of their recipes and came up with this recipe. The best part; it’s ready in under an HOUR!

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Creamy, healthy, warming and oh-so flavorful cauliflower soup! A great meal chilly evening. Chunks of roasted cauliflower, roasted garlic, seasonings in a chicken broth base blended together and topped with croutons and cheese! #thefreshcooky #cauliflower #soup #creamy #comfortfood

Are you a resolutions person? Goals? Lists? I’m not big on resolutions and the more I read, the more I realize I’m not alone. I’m more of a goals and lists girl; the older I get the simpler the goals are, like, “wake up, or put the laundry away within 24 days, uh, I mean hours, or tackle one cupboard/closet a week.” These are not lofty goals, but when you put them all together they really do add up.

The older I get the more clutter makes me a bit crazy, which is funny because I’m the queen of creating clutter! My HSD (horizontal surface disorder-ha!) is in full effect right now; Christmas cards laying in piles waiting for me to organize, recipes ripped out from great magazines.

I breath a bit easier when things are tidy and in their proper place. Do you?

bowl of roasted cauliflower soup with croutons | thefreshcooky.com

In fact, I shared our family chore chart on Instagram this week and had quite a few responses. It was born out of frustration, when our boys would fight over who did what chore, as some of our chores changed from week to week and there hasn’t been nary a fight since! I

love watching them go to the board, find the week and discover that indeed mom was right when she asked said child to take out the recycle bins! NO arguments or yelling “it’s not fair!” It’s blissful, this isn’t a comprehensive list of their chores, just the rotating ones, the others they do regardless weekly. Enlist your kiddos early, it’s good for the whole family!

Chore Chart | www.thefreshcooky.com #chorechart #chores #stopthefighting

How to Roast Garlic

Let’s get our garlic roasting first, that is what takes the longest. Preheat your oven to 425°.

If you know you are going to make this soup, you can easily make the roasted garlic ahead of time so that it’s all ready when you start assembling your soup, for that matter you can roast your cauliflower ahead of time as well! Just refrigerate until ready to use.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com

Start by lopping off the top ยผ of the bulbs of garlic, just enough to expose each of the cloves. 

Set the cloves of garlic on a sheet of foil and drizzle a little olive oil over the tops and sprinkle with a little sea salt. Seal up foil and place in preheated oven roasting for 20-25 minutes.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly

While your garlic is roasting, wash and segment your cauliflower into little florets, don’t be too worried about them being the same size as you will roast them and then they will be pureed later on.

How to Roast Cauliflower

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly

Place cauliflower florets into a large bowl and toss with 1 tablespoon olive oil and salt and pepper. Stir around to coat the cauliflower.

Place prepared cauliflower onto a sheet pan (lined with foil or parchment paper for easier cleanup) and roast along with garlic for 20-30 minutes, tossing half way through. Roast cauliflower until tender, golden brown and a little charred too. Continue roasting the garlic for the duration of your cauliflower roasting.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

While your garlic and cauliflower roasts…

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly

…prep your veggies for sautéing.

Making Roasted Cauliflower Soup

Chop your celery, including the leafy tops from the heart.

Place prepared cauliflower onto a sheet pan (lined with foil or parchment paper for easier cleanup) and roast along with garlic for 20-30 minutes, tossing half way through. Roast until tender, golden brown and a little charred too. Continue roasting the garlic for the duration of your cauliflower roasting. 

Chop your onion. In a medium sized soup pot, over medium heat, melt 2 tablespoons of butter and 1 tablespoon olive oil. Sauté until fragrant and golden brown.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Chop and add your fresh thyme, which I happened to have on hand this time, but it’s perfectly fine to use dried thyme as well. Sauté along with the onions and celery.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Remove your cauliflower from oven and toss into pot, sautéing for a few minutes.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Squeeze in your garlic cloves (oddly satisfying); if the head is still too hot to touch, wrap a paper towel around the bulb and you should be able to squeeze the garlic cloves into the soup plop pot, making cute plopping noises as they go in!

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Give it all a good stir and increase your heat slightly; next we’ll add the chicken stock, pour in the whole quart and stir to get any of those yummy brown bits stuck on the bottom of the pan.

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Toss in about a teaspoon of sea salt, you can adjust later and stir to combine.

Bring to a simmer, cover and cook for 15 minutes until veggies are tender. Using an immersion or stick blender, blend until smooth or may be pureed in a blender by removing a couple cups at a time and process until smooth, careful it’s hot. A few chunks in the soup is just fine!

Roasted Cauliflower Soup with Garlic Croutons | www.thefreshcooky.com #cauliflowersoup #roastedcauliflowersoup #simplesoups #lowcarb #ketofriendly #sharpcheddar

Add your cream or milk (many times I’ll use half and half or use half cream, half whole milk). And bring to simmer, check seasoning, add a bit more salt and pepper if desired. Serve immediately or may be cooled and reheated if need be.

Ladle into bowls, topping with a small handful of shredded cheddar cheese and these simple garlic croutons.

The Best Garlic Croutons

Melt ยผ cup of butter (ยฝ a stick) in a hot pan over medium-high heat.

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

Take 4 slices of bread of choice, and slice into cubes of desired size. Seriously, I just use what I have on hand, if you want to get really fancy, you can cube french or sourdough bread, but honestly I generally use plain ol’ sandwich bread. Gluten free breads work great too!

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

Toss your bread cubes into the hot butter and toss around quickly, distributing the butter to as many surface areas of the cubes as possible. Sometimes I need to add a bit more butter, depending on how they toast.

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

Sprinkle on sea salt…

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

And your garlic powder…

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

Continue gently stirring or tossing the cubes around to heat and toast as evenly as possible.

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

Once they are toasted, about 4-5 minutes, less or longer depending on how crisp you like them, try one and make sure they are seasoned to your liking, adjust seasonings if need be and then remove from pan onto paper towels to cool and dry. These aren’t your traditional croutons, they are softer than normal.

Garlic Croutons | www.thefreshcooky.com #garliccroutons #homemadecroutons #simplecroutons

If you are patient, they can sit on the counter for a bit to “crisp” up a bit more, but they don’t last long on my counter; everyone walks by and steals a handful here and there.

Serve on top of your soup with a generous pile of shredded sharp cheddar cheese and if desired a sprinkle of parmesan cheese as well.

Roasted Cauliflower Soup | www.thefreshcooky.com

I hope even if you are a cauliflower hater disliker, that you will give this soup a try. I’ve made it for luncheons with a large salad like my Sweet Maple Apple Pecan Salad and a loaf of crusty bread; it’s also wonderful as a lighter dinner with just the soup, some sliced veggies and a dinner roll (try my Oatmeal Dinner Rolls or this Beer Bread goes great with it as well.

Like this recipe? Try these other chilly weather recipes as well:

Better-Than-Panera Broccoli Cheese Soup
Tender Beef Stew
Firecracker (but not HOT) Chili

Recipe Card
Roasted Cauliflower Soup | www.thefreshcooky.com

Roasted Cauliflower Soup with Simple Garlic Croutons

No ratings yet
Author: Kathleen | The Fresh Cooky
Prep Time: 15 minutes minutes
Cook Time: 30 minutes minutes
Roasting Time: 30 minutes minutes
Total Time: 1 hour hour 15 minutes minutes
Servings: 4 -6 servings
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A deliciously deceptive soup, filled with healthy roasted cauliflower and the creaminess of roasted garlic, finished with sharp cheddar cheese and simple homemade garlic croutons it’ll warm you from the inside out.

Equipment

  • Wusthof Santoku knife 5 inch; Black
  • Farberware Professional Ladle (Stainless Steel)
  • Mueller Austria 1 001 Ultra-Stick 500 Watt 9-Speed Immersion 

Ingredients 

Roasted Cauliflower Soup

  • 1 large head or two small cauliflower, washed and cut into small florets
  • 2-4 heads of garlic trimmed ยผ off top
  • 1-2 tablespoons olive oil
  • sea salt
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 1 medium onion diced
  • 3 ribs celery including leafy portion of hearts, diced
  • 1 tablespoon fresh thyme chopped (or may substitute 1 teaspoon dried thyme)
  • 1 quart 4 cups chicken stock/broth
  • 1 cup half and half or whole milk or half of each, or may be replaced with cream or milk substitute
  • ยฝ cup grated parmesan optional
  • 1-1 ยฝ cups shredded sharp cheddar cheese of choice

Garlic Croutons

  • ยผ cup butter
  • 4 slices bread cubed
  • ยฝ teaspoon salt
  • ยฝ teaspoon garlic powder
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Instructions

  • Preheat your oven to 425°. Cut ยผ top off of garlic heads, drizzle a little olive oil over the tops and sprinkle with a little sea salt. Wrap in foil and place in preheated oven, roast for 40-60 minutes until soft and brown.
  • Meanwhile, wash and cut up cauliflower head into florets. Place in a bowl and drizzle with 1-2 tablespoons olive oil and sprinkle with salt and pepper. Lay in single layer on a sheet pan (lined with parchment or foil for easy cleanup). Roast in oven (with garlic) for 20-30 minutes until golden brown, soft and lightly charred.
  • While roasting the cauliflower and garlic, melt your butter and oil over medium heat in a medium sized soup pot. Place your diced onion, celery into medium sized pot with melted butter and oil and saute until golden and soft, add thyme and stir around. Once the cauliflower is roasted, add to pot with onions and celery, stir around.
  • Squeeze the soft cloves of roasted garlic into the soup pot (if too hot, wrap garlic bulb in paper towel and squeeze from bottom up popping out the soft cloves of garlic). Increase the heat slightly and add chicken stock. Bring to simmer, reduce heat and cover and simmer for 10 minutes until all veggies are soft and flavors blend. Using an immersion blender or regular blender, blend until desired smoothness (some chunks are fine, or completely smooth is fine too). Add milk (or half and half or alternative) and stir to combine, heat through. Serve immediately or cool and reheat to serve.
  • Garnish with Garlic Croutons and a handful of shredded sharp cheddar cheese and if desired a little bit of grated parmesan cheese.

GARLIC CROUTONS

  • Heat a large pan on medium-high heat and melt ยผ cup butter. Cube 4 slices of bread of choice and toss into hot butter, shaking and stirring well to distribute the butter evenly. Sprinkle with salt and garlic powder, keep toasting 3-5 minutes until desired doneness. Turn out onto paper towels to cool.
  • They will be softer than a normal crouton, you can make these ahead and leave on the counter and they will dry out and crisp up as they sit out. But they are just as delicious soft!
Last step! Leave a RatingRate this recipe here. This helps other readers and helps support this website.

Nutrition

Serving: 11 serving | Calories: 629kcal | Carbohydrates: 29g | Protein: 24g | Fat: 47g | Saturated Fat: 25g | Polyunsaturated Fat: 19g | Trans Fat: 1g | Cholesterol: 114mg | Sodium: 1159mg | Fiber: 2g | Sugar: 8g
Roasted Cauliflower Soup | www.thefreshcooky.com
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Kathleen Pope

Meet Kathleen

Recipe Innovator | Food Photographer | Food Writer

Hi, Iโ€™m Kathleen Pope. Here at The Fresh Cooky you will find easy, mostly from-scratch, trusted recipes for all occasions. From speedy dinners to tasty desserts, with easy step-by-step instructions. I am here to help teach you how to make mouthwatering recipes without spending hours in the kitchen.

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  1. Jeni

    Mon, Sep 30, 2019 at 5:27 pm

    This looks delicious!!! I will have to give this one a try!

    Reply
    • KathleenKathleen

      Tue, Oct 1, 2019 at 8:51 pm

      I hope you do Jeni, I personally think it’s one of those, “wow, I didn’t expect this!” kind of soups!

      Reply
  2. Sharron

    Tue, Jan 23, 2018 at 4:58 pm

    Kathleen, I’ve never tried cauliflower soup, I’m putting this on my list of soups to try. This looks delicious!

    Reply
    • KathleenKathleen

      Tue, Jan 23, 2018 at 4:59 pm

      I do hope you try it and love โค๏ธ it!!

      Reply

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Kathleen Pope

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Hey there! I'm Kathleen Pope, a proud wife, mom of two awesome college boys, and recipe nerd. Welcome to my world of easy recipes with a healthy twist! Join thousands who trust The Fresh Cooky as their go-to recipe source. Let's cook up some magic!

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