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Keto Cauliflower Soup with Bacon

 This delicious Roasted Keto Cauliflower Soup with Bacon is oh-so-creamy, comforting, and flavorful thanks to ingredients like butter, heavy whipping cream, and perfectly roasted cauliflower. It’s a true keto comfort food!

keto cauliflower soup prepared in bowl

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This soup is comfort in a bowl. 🥣 In just about 45 minutes, you’ll have a piping hot bowl of deliciously velvety, flavorful, and healthy soup ready to enjoy. Comfy chair, fuzzy blanket, and a good book optional, but highly recommended.

I absolutely love the creaminess that roasted cauliflower lends to soups. If this weren’t a keto soup recipe, the cauliflower alone would be enough to make it a creamy soup, but on keto, we get to amp up the creaminess with butter and heavy whipping cream. Yum! Add some chicken Keto Broth for flavor and top with crumbled bacon for total soup bliss.

Also, try some  of our popular keto soups including our Keto Mushroom Soup, Keto Turkey Soup and Keto Cheeseburger Soup.

Loaded Keto Cauliflower Soup

…and why you’ll love it!

  • It’s ready in just about 45 minutes and is soup-er 😉 easy to make.
  • It’s an easy way to add more vegetables to your diet. This soup is loaded with nearly 2 lbs(!) of cauliflower, but you certainly won’t be thinking, “Ugh, I’m eating a vegetable!” while you’re devouring it.
  • It’s topped with bacon. Bacon makes everything worth eating.
  • It’s total comfort food. Yummy!

How to Make Loaded Cauliflower Soup

This is just a quick overview of how to make roasted cauliflower soup. For the recipe in detail, scroll to the recipe card at the end of the post.

Start by roasting your cauliflower…

cauliflower on sheet pan

Once the cauliflower is roasted, add it to a large pot with chicken broth and fresh thyme. Simmer and then remove from heat.

TIP: For a thicker soup, use less chicken broth; for a thinner soup, add more chicken broth until you reach your desired consistency.

low carb cauliflower soup in bowl

Then add heavy whipping cream, butter, and salt and pepper to taste.

Cauliflower Soup Keto

TIP: If you want this soup to be higher in fat without increasing the carb count, you can add more butter.

whipping cream pouring into bowl of soup

Using an immersion blender (my preferred method!) or regular blender, puree the soup until it is your desired texture.

ladle with soup hovering over bowl

Garnish each bowl with bacon and enjoy!

low carb cauliflower soup in bowl ready to serve

More Keto Side Dishes

As you can see in the nutrition facts below, this soup is a bit low in calories, fat, and protein, so you may want to serve it as a soup side dish. It will pair perfectly with:

Additionally, if you want this soup to be higher in fat without increasing the carb count, you can add more butter.

Is Cauliflower Okay to Eat on Keto Diet?

Yes, cauliflower is a low net carb vegetable that works for people on the keto diet. One cup of chopped cauliflower has 2.9g net carbs in it. It is used in many recipes on the keto diet as a substitute to high carb grains, including:

  • Cauliflower rice
  • Pizza crust
  • Mashed cauliflower (aka “keto mashed potatoes”) — make sure to check out my Cauli Mash Keto recipe!
  • Cauliflower mac and cheese
  • Cauliflower tortillas

Additionally, try some of our most popular cauliflower dishes including Keto Mac and Cheese, Cauliflower Cheese Casserole,  and   .

Is Cauliflower Healthy to Eat?

Yes, cauliflower is a healthy cruciferous vegetable with many health benefits, including:

  • A high amount of nutrients
  • High levels of antioxidants
  • A high amount of fiber which is excellent for a healthy digestive system
  • A high amount of the antioxidant sulforaphane which may reduce your risk of cancer
  • Large amounts of choline which promote proper nerve function and disease prevention
  • It may assist in weight loss for suppressing appetite due to its fiber and water content

Nutrition Facts for Keto Cauliflower Soup

Per serving:

  • 182 calories
  • 15g fat
  • 7g protein
  • 4.7g net carbs

keto cauliflower soup served in bowl with bacon

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keto cauliflower soup inside bowl with bacon on top

Keto Cauliflower Soup with Bacon

5 from 2 votes
Print Pin Rate
Course: Dinner, Lunch, Side Dish
Cuisine: American
Keyword: keto cauliflower soup, low carb cauliflower soup, roasted cauliflower soup
Prep Time: 5 minutes
Cook Time: 40 minutes
Total Time: 45 minutes
Servings: 6
Calories: 182kcal


  • 1 3/4 lb cauliflower florets about 1 medium head
  • 4 tbsp butter melted and divided
  • 4 cups chicken broth
  • 1/4 cup heavy whipping cream
  • Fresh thyme
  • Salt and pepper to taste
  • 6 strips bacon cooked


  • Preheat oven to 425 F.
  • In a large bowl, toss cauliflower florets with 3 tbsp melted butter and salt and pepper to taste.
  • Arrange cauliflower in a single layer on a large rimmed baking sheet. Roast for 25-30 minutes until the edges are golden brown, tossing the cauliflower once during baking.
  • Transfer cauliflower to a large pot. Add chicken broth and several sprigs of fresh thyme, then bring to a simmer for 10 minutes.
  • Remove pot from heat and carefully remove thyme sprigs. Then add remaining 1 tbsp butter, heavy whipping cream, and salt and pepper to taste.
  • Using an immersion blender or regular blender, carefully blend the soup until smooth, working in batches if necessary.
  • Garnish each bowl of soup with one cooked-and-crumbled strip of bacon.


  • For a thicker soup, use only 3 3/4 cups chicken broth.
  • For a thinner soup, add more chicken broth until you reach your desired consistency.
  • If you want this soup to be higher in fat without increasing the carb count, you can add more butter.
Nutrition Facts
Keto Cauliflower Soup with Bacon
Amount Per Serving
Calories 182 Calories from Fat 135
% Daily Value*
Fat 15g23%
Carbohydrates 8g3%
Fiber 3.3g14%
Protein 7g14%
* Percent Daily Values are based on a 2000 calorie diet.

Nutrition Disclaimer

Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.


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Recipe Rating

  • 5 stars
    I made Keto cauliflower soup this past weekend. I highly recommend this soup. It is creamy and filling and perfect for the cold weather that we are having. My wife and I loved the cauliflower soup and will be making it again. It is an easy recipe to follow.

  • 5 stars
    Keto Cauliflower Soup makes a great meal. It is so creamy and filling. I reduced the amount of chicken broth to 3 3/4 cups for the thicker version of the soup. I will be making this cauliflower soup often because it is so good.

Welcome! I’m Jessica.

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