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    Home » Soups, Chilis & Stews » Keto Broccoli Cheese Soup

    Published: Nov 13, 2022 by Carolyn

    Keto Broccoli Cheese Soup

    This post may contain Amazon or other affiliate links. As an Amazon Associate I earn from qualifying purchases.

    2.2K shares
    Jump to Recipe Print Recipe

    Cozy up with a big bowl of this rich, hearty Keto Broccoli Cheese Soup. It’s the ultimate low carb comfort food, with only 6g net carbs per serving!

    Close up shot of keto broccoli cheese soup in a white bowl with a green napkin.

    I do declare that there is nothing in the world more comforting than a steaming hot bowl of this Keto Broccoli Cheese Soup. It’s the definition of comfort food. Seriously, go check your dictionary. I swear you will see a photo of this soup!

    I love rich, thick soups on a cold day, and we’ve had plenty of cold days lately. And more to come! So I fell back on an old family favorite to fill us up and warm us up.

    This recipe actually comes from my first cookbook, The Everyday Ketogenic Kitchen. Readers love it and I decided it was time to share it with all of you.

    Love that broccoli and cheese combo? Try my popular Chicken Broccoli Casserole! And Sheet Pan Frittata makes a great keto breakfast option too.

    A ladle lifting Keto Broccoli Cheese Soup out of a slow cooker.

    Why you will love this soup

    This Keto Broccoli Cheese Soup is so easy to make. It has minimal prep time, and it practically cooks itself. I like to make it in my slow cooker, but I provide instructions for stovetop and Instant Pot as well.

    If you purchase pre-cut broccoli, you really only need to chop a little onion and mince a little garlic. Then everything gets dumped in together. When it’s finished cooking, you blend it up and you’re ready to serve!

    You can choose to blend it completely and make it super smooth and creamy. But it’s also fun to leave some of the broccoli bits unblended, so it’s a little on the chunkier side. Either way, it’s incredibly hearty and satisfying.

    Ingredients you need

    Ingredients needed for Keto Broccoli Cheese Soup.
    • Broccoli: You can use fresh or frozen broccoli for this soup, as they cook up the same way.
    • Cream cheese: I always recommend full fat cream cheese to avoid the fillers and additives in reduced fat.
    • Onion: A little chopped onion adds great flavor.
    • Garlic: You can do as much or as little as you like. I opted for 3 cloves. Fresh garlic gives the soup the best flavor, but you could also do ¾ teaspoon garlic powder.
    • Chicken broth: Feel free to substitute vegetable broth for a vegetarian Keto Broccoli Cheese Soup.
    • Cheddar: I like to use sharp white cheddar, but any cheese works well. You could do orange cheddar, Monterey Jack, or Mexican cheese.
    • Spinach: A little spinach makes the color of the soup more vibrant, but you don’t have to add it if you don’t want to.
    • Seasonings: Salt, pepper, red pepper flakes.

    Step by Step Directions

    A collage of four images showing how to make Keto Broccoli Cheese Soup.

    It’s so easy to make this Keto Broccoli Cheese Soup in a slow cooker. You only need about 10 minutes of prep time, and the crockpot does all the rest of the work for you!

    1. Place the broccoli, cream cheese, onions, butter, garlic, chicken broth, salt, pepper, and red pepper flakes in a large slow cooker. Cover and cook on high for 2 hours or low for 4 hours.

    2. Add the cheese and spinach and stir until the cheese is melted.

    3. Use an immersion blender to blend until smooth, or transfer the soup to a large blender. You can also leave it a little chunkier, if you prefer.

    4. Season to taste with additional salt and pepper before serving.

    A bowl of Keto Broccoli Cheese Soup over a patterned napkin on white plate.

    Expert Tips

    You do not need any kind of thickener for this rich, creamy soup. The vegetables, cream cheese, and cheese provide a thick texture from the start. You may even find you want to thin it out a bit with more broth, for a lighter soup.

    If you choose to use a large blender to puree the soup, make sure you blend the soup in two batches. Also be sure to cover the top of the blender with a tea towel so you don’t burn yourself if any hot soup splashes out.

    Stovetop Directions

    You can also make this Keto Broccoli Cheese Soup on the stovetop. I recommend sautéing the onions and garlic in a little oil first, then adding the broccoli and broth. Bring to a simmer and cook until the broccoli is very tender, 10 to 15 minutes. Stir in the cream cheese, cheese, and spinach until the cheese is melted. Then blend and enjoy!

    Instant Pot Directions

    Add the first 8 ingredients into your Instant Pot and set to Manual High for 5 minutes. Let the pressure release naturally and then add the shredded cheese and spinach. Blend and enjoy!

    A hand reaching a spoon into a bowl of keto broccoli cheese soup.

    Frequently Asked Questions

    How many carbs does Broccoli Cheese Soup have?

    Conventional broccoli cheese soup often contains flour or cornstarch as thickeners, so it’s not low carb. The popular soup from Panera has 25g of carbs per serving. However, this recipe for Keto Broccoli Cheese Soup has only 8.3g of carbs and 2.3g of fiber. That’s means it has 6g net carbs per serving.

    Why won’t my cheese melt in my broccoli cheddar soup?

    Make sure you are using cheddar that you have grated yourself, rather than pre-shredded cheese. The packaged kind contains anti-caking agents such as cellulose that can keep the cheese from melting properly.

    Can you freeze keto broccoli cheese soup?

    Dairy-based soups are tricky to store, as they can change consistency with freezing and thawing. If you choose to do so, make sure you let the soup cool completely before transferring to a freezable container. Let it thaw in the refrigerator and re-heat it very gently. If you do find that it separates, transfer it to a blender to make it smooth again.

    More of my favorite keto soups

    • Buffalo Chicken Soup
    • Roasted Tomato Soup
    • Keto Seafood Chowder
    • Instant Pot Cauliflower Soup
    • Keto Chicken Enchilada Soup
    A white bowl filled with Keto Broccoli Cheese Soup.

    Keto Broccoli Cheese Soup Recipe

    Cozy up with a big bowl of this rich, hearty Keto Broccoli Cheese Soup. It's the ultimate low carb comfort food, with only 6g net carbs per serving!
    4.84 from 18 votes
    Print Pin Rate
    Course: Soup
    Cuisine: American
    Keyword: keto broccoli cheese soup
    Prep Time: 10 minutes
    Cook Time: 2 hours
    Total Time: 2 hours 10 minutes
    Servings: 6 servings
    Calories: 294kcal

    Ingredients

    • 1 lb broccoli
    • 4 ounces cream cheese
    • ¼ cup chopped onion
    • 3 cloves garlic minced
    • 4 cups chicken broth
    • ½ teaspoon salt
    • ½ teaspoon pepper
    • ¼ teaspoon red pepper flakes
    • 8 ounces shredded Cheddar chese
    • ½ cup frozen spinach
    US Customary – Metric

    Instructions

    • Place the broccoli, cream cheese, onions, garlic, chicken broth, salt, pepper, and red pepper flakes in a large slow cooker. Cover and cook on high for 2 hours or low for 4 hours.
    • Add the cheese and spinach and stir until the cheese is melted. Use an immersion blender to blend until smooth. You can also leave it a little chunkier, if you prefer.
    • Season to taste with additional salt and pepper before serving.

    Video

    Notes

    Storage Information: Store this soup in a covered container in the fridge for up to 7 days. 
    Nutrition Facts
    Keto Broccoli Cheese Soup Recipe
    Amount Per Serving (1 serving = 1 ⅓ cup)
    Calories 294 Calories from Fat 182
    % Daily Value*
    Fat 20.2g31%
    Carbohydrates 8.3g3%
    Fiber 2.3g9%
    Protein 14.9g30%
    * Percent Daily Values are based on a 2000 calorie diet.
    2.2K shares

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    Nutritional Disclaimer

    Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program. I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.

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      Recipe Rating




    1. Martha G. says

      March 13, 2023 at 11:59 am

      5 stars
      Wonderful soup! I’ve been trying soup recipes in my Vitamix and this worked great. Used all the ingredients listed, but added them to the blender container in this order: broth, broccoli/spinach, cream cheese, then all the others. Blend on high for at least 5 minutes or until heavy steam is escaping from vented lid. Oh, and I first softened the broccoli in the microwave for a few minutes. Very flavorful! Will definitely make again.

      Reply
    2. Dawn says

      February 27, 2023 at 10:41 pm

      3 stars
      This was literally the biggest recipe fail I’ve ever experienced. I followed the directions, (full fat cream cheese, shredded the block cheddar, etc), but this was a watery mess. I blended it too in hopes it would thicken but it didn’t, and then the texture was just entirely unappetizing…like that grainy texture when you use bagged shredded cheese and it doesn’t melt properly, only except it was granulated pieces of broccoli, onion & spinach. I truly don’t understand how it turned out so poorly for me, but I see that others have had success so I’m both confused and disappointed. I’m throwing it out.

      Reply
      • Carolyn says

        February 27, 2023 at 11:29 pm

        I honestly can’t say why without knowing more. It should be a thick, creamy soup, as you can see from my photos. I have made this countless times and never had it be a watery mess. I can’t understand why you couldn’t get it to blend up properly. I can do it easily with both my hand blender and my big blender.

        Reply
    3. Liz Odle says

      February 08, 2023 at 9:48 am

      My hubby tends to lean to the carnivore side of keto. Could I add some rotisserie chicken to this? How much do you suggest?

      Reply
      • Carolyn says

        February 08, 2023 at 10:46 pm

        However much you like!

        Reply
    4. Mel Ramos says

      February 01, 2023 at 2:06 pm

      5 stars
      Best broccoli cheddar soup ever! Have been fiddling with broccoli cheddar recipes a long time and this formula finally resolved all my issues. I used an instant pot so it was ready in half an hour! Also used fresh broccoli and spinach (seared) because what I had on hand. Really loved sneaking that spinach in at the end and the hot tip about grating your own cheese so it actually melts. Thank you Carolyn!

      Reply
      • Carolyn says

        February 01, 2023 at 6:33 pm

        Thank you!

        Reply
    5. Tammie says

      January 08, 2023 at 7:22 pm

      4 stars
      My cheese didn’t melt well. I have little chunks laying on the bottom. I used a slow cooker. What could’ve gone wrong? It tastes ok though.

      Reply
      • Carolyn says

        January 08, 2023 at 8:05 pm

        Um… I think the cheese has to be at fault here. What brand did you use?

        Reply
    6. Lisa says

      January 02, 2023 at 10:23 pm

      5 stars
      Delicious! I love broccoli cheddar soup but haven’t had it in a long time. And forget about Paneras broccoli cheddar soup – this is 1000 times better!!

      Thank you sooooo much for creating this Carolyn!

      Reply
    7. Valeria Dombiak-Woelfel says

      December 30, 2022 at 3:20 pm

      Can I please have the link to the older recipe with baking soda and no spinach? It was one of my favorite soups and it seems to have been replaced. thanks!

      Reply
    8. Liz H. says

      December 24, 2022 at 8:08 pm

      The soup is very tasty, but the broccoli is a little overdone for me. Next time I make it, I will leave out the broccoli until it has cooked for 2 hours on low, then add the fresh broccoli. Also will add 1 tsp xanathan gum or similar thickener at the very end. Hubby prefers it a little chunkier, so will use a light hand with the immersion blender. I used 8 oz of a sharp cheddar. Great cheese flavor.

      Reply
      • Gail says

        January 08, 2023 at 3:43 pm

        Did you use fresh or frozen broccoli?

        Reply
    9. Rebecca says

      December 23, 2022 at 11:16 am

      How much does this make, please? Thanks!

      Reply
      • Carolyn says

        December 23, 2022 at 12:02 pm

        Please read the recipe. I state how many servings and how large each serving is.

        Reply
    10. Christina says

      December 17, 2022 at 12:04 pm

      I started this and I’ve even made it before, but I forgot to look for broccoli before I got everything else ready. Could I use cauliflower instead and make it cauliflower soup?

      Reply
      • Carolyn says

        December 18, 2022 at 9:56 am

        Try this recipe: https://alldayidreamaboutfood.com/instant-pot-loaded-cauliflower-soup/

        Reply
    11. teresa says

      November 29, 2022 at 5:08 pm

      this was terrific! i had frozen broccoli stalks so i used a pound of those and then added 6 ounces of frozen florets …also used homemade chicken stock …..excellent and thanks !

      Reply
    12. Peg Wilkins says

      November 20, 2022 at 3:35 pm

      5 stars
      Margaret L

      Reply
    13. Lisa Shelter says

      November 14, 2022 at 11:07 pm

      I made this soup but wanting more color, I added a little carrot and red onion. Just as yummo and flavorful! Oh, and froze it in small portions, which were easier to heat up. A little separation but stirred is all up and didn’t notice it. Ate it with a Fathead dinner roll and PERFECT for a cold day. Thank you for sharing your recipes and passion for healthy eating!

      Reply
      • Carolyn says

        November 15, 2022 at 9:08 am

        Sounds perfect!

        Reply
    14. Renee says

      November 14, 2022 at 9:19 am

      Hey Carolyn under the step by step instructions it also says to add butter.

      Reply
    15. Patti says

      November 14, 2022 at 6:43 am

      Hi,
      We love cheddar broccoli soup!! Should the 1/2 cup frozen spinach packed or loose?
      Thanks!!

      Reply
    16. k says

      November 13, 2022 at 7:49 pm

      If one needs to add butter to the recipe, how much, ad at what point? I assume the point at which you might add butter might also change the directions for Instant Pot cooking.

      Reply
      • Carolyn says

        November 13, 2022 at 9:48 pm

        It’s not supposed to be there, I removed it from the recipe.

        Reply
    17. Mary O says

      November 13, 2022 at 5:37 pm

      This recipe’s instructions call for butter to be added but the butter is not in the ingredient list and no where do the instructions stipulate how much butter to use. Could you advise please?

      Reply
      • Carolyn says

        November 13, 2022 at 9:48 pm

        Not supposed to be there, I have removed it.

        Reply
    18. Renee says

      November 13, 2022 at 4:20 pm

      It says to add butter but I don’t see butter on the ingredient list. Thank you!!!

      Reply

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