This healthy and hearty zucchini soup recipe is the BEST way to use up fresh garden zucchini! The broth is perfectly seasoned with herbs, spices, and potatoes that are blended in to thicken it with no need for additional cream or cheese. (But feel free to add some for extra indulgence!)
Be sure to try my Roasted Butternut Squash Soup next!
This is the first recipe in history, in all of my 7 years of blogging, that I emailed straight to my mom and best friend to make before it was even up on the blog. When I say that this is the best zucchini soup recipe, I am not kidding.
(It definitely made the cut for The Cozy Cookbook!)
The best part is that there is no need to add any cream to it if you want to keep things lighter. It tastes perfectly good without it! (Of course, me being The Cozy Cook and all, added just a little bit.)
The cheese options are endless, I went with a sharp orange cheddar. White cheddar, Parmesan cheese, or even Gouda cheese would be excellent additions to this soup.
How to Make it
Cook diced onion and garlic in melted butter until softened. Add zucchini and seasonings, saute for 5 minutes.
Add chicken broth, soy sauce, and diced potatoes.
Bring to a boil and reduce to a simmer, cook for 20 minutes, until vegetables are very soft.
Use an immersion blender (you can buy one on Amazon here) or blender to blend until smooth. Serve, or add cream or half and half if desired.
Shredded cheese may also be added. Options include Cheddar, Parmesan, and Gouda. Stir until combined and smooth. Serve!
Do You Peel Zucchini for Soup
If you are working with a very large zucchini, you may choose to peel it first as sometimes the skins can become tough and bitter if they’re overly large. Otherwise, no need to peel.
The ideal size for a zucchini is about 6 inches, this is when it’s at it’s most ripe.
How Do You Thicken Zucchini Soup
This zucchini soup recipe doesn’t require a roux or slurry in order to thicken it. Instead, potatoes are added to the soup and are blended into the broth until smooth and creamy. This makes the broth nice and thick without the need to add anything extra.
PRO TIP: I love the convenience of using my immersion blender to blend this soup, (you can get one on Amazon here), however others have had success using a potato masher as well! It will have a little more texture, but some prefer it that way.
Store in an airtight container and refrigerate for up to 3 days or in the freeze for up to 3 months.
Health Benefits of Zucchini
As reported by Healthline, zucchini is rich in nutrients, high in antioxidants, aids in digestion, can improve heart health and reduce blood sugar levels and more. So feel good about eating this soup!
Try These Next
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Tried This Recipe?
Leave a review, I love hearing your feedback! ⭐⭐⭐⭐⭐
- 2 Tablespoons butter
- 1 small yellow onion, diced
- 2 cloves garlic, minced
- ¼ teaspoon dried rosemary
- ¼ teaspoon dried thyme
- ¼ teaspoon celery salt
- ¼ teaspoon black pepper
- ¼ teaspoon kosher salt
- 1 pinch cayenne, optional
- 5 cups zucchini, cut into chunks
- 3 cups chicken broth
- 1 Tablespoon soy sauce, (or Worcestershire sauce)
- 2 Russet potatoes, equal to 1 pound
- 1/2 cup Half and Half, or heavy cream
- 1 cup Cheddar Cheese
- Note: There is no need to peel the zucchini for this soup unless yours is jumbo sized, in which case it's possible that the skins are tough and slightly bitter.
- Shred the cheese from a block for best results. Set aside to allow to come down to room temperature. This will allow it to melt and combine into the soup smoothly.
- Melt butter in a soup pot over medium heat. Add onions, cook until softened, about 5 minutes. Add garlic and cook 1 more minute.
- Add diced zucchini and seasonings: (1/4 tsp each of: dried rosemary, thyme, celery salt, kosher salt, pepper, and an optional pinch of cayenne.) Sauté for 5 minutes.
- Peel and rinse the potatoes. Cut them into small pieces of equal size so that they cook evenly and quickly.
- Add diced potatoes, chicken broth, and soy sauce. Bring to a boil, then reduce heat to medium. Skim up any brown foam from the top if needed.
- Let simmer, partially covered, until the vegetables are very fork tender. About 20 minutes.
- Remove from heat. Use an immersion blender or transfer to a blender in batches to blend until smooth.
- Transfer back to the heat on low. Stir in the half and half.
- Slowly sprinkle in the cheese and stir to combine. Remove from heat and serve!
- The dairy is optional, this soup tastes great without it. If adding cheese, feel free to experiment with different varieties such as Sharp White Cheddar, Parmesan, Gouda, or a combination of different cheeses.
- The addition of soy sauce adds umami and enhances the other flavors in the soup, you won't be able to taste it, but it's a great cooking tool.
- You can get an immersion blender on Amazon, it makes it easy to blend soups and sauces right in the pot without having to transfer it elsewhere and blend in batches.
- This recipe is in The Cozy Cookbook on page 67!
There are 6 servings in this recipe, each with 226 calories, which includes the optional addition of half + half and cheese.
Storage: Refrigerate for up to 3 days or freeze for up to 3 months.
Nutrition facts are based on adding dairy.
The soup turned out absolutely fabulous, and the Recipe was easy to follow. To my personal serving I added some diced roasted chicken for a little extra protein. Thanks for sharing.
A little roasted chicken is a great addition, I’m so happy you enjoyed the recipe and found it easy to follow! Thanks so much for the support Diva💖
Wondering whether you could suggest a substitution for the potatoes to make this lower in carbs?
Hi Cynthia, cauliflower would work 🙂
Wow! Simply delicious! Thank you so much for the post. Made it last night with some toasted fresh sourdough and I went to food heaven.😊can’t wait to try more of your recipes. Just curious, how much is the serving size? A cup?
Hi Désirée! I’m so happy that you loved this soup, I love that you had it with sourdough, there is nothing better! My apologies on the delay on this response, I don’t have a cup measurement for this soup, so 1 serving is just 1/6 of the batch, (since it makes 6 servings). Thank you for taking the time to leave a review!! 🙂 -Stephanie
Honestly surprised to find such a homerun! I wasn’t sure what to do with Zucchinis. I have a side dish and a Zucc bread recipe, but nothing as a whole meal. This soup turned out amazing and I didn’t even use the Cream or Cheese, yet my wife said it had a sort of cheesy flavor!
Zucchinis are super cheap where I am right now so definitely gonna stock up and make a big batch of this to warm us during our ongoing freezing Canadian months! Thank you!
I’m so happy this is helping to keep you warm during the cold Canadian months Martin! It’s amazing how yummy zucchini can be. My husband was shocked when he tried this the first time. Thanks for the great review!💖
My hubby and I love this soup!! I have a batch simmering now and our home smells incredible!!!
I’m so happy you guys are enjoying the soup! Every time we have a big Zucchini harvest I try to freeze as much of this soup as I can. Thanks so much for the great review Misty!💗
I need to get extra protein anywhere I can. I had WLS in 2015 and have always struggled with this issue. Do you think adding a couple of tablespoons of nutritional yeast, since it has a light cheese taste?
I think nutritional yeast would be great in this, yes! (I like to sprinkle nutritional yeast over popcorn too, if you haven’t tried that, it’s good!!)
Sooooo good! My husband’s favourite soup and he’s very fussy, so this says it all. Our 3 grandchildren inhale this soup. 👏👏👏
I am so happy to hear that Diane!! I make this ALL the time in the summer so that I can pull batches from my freezer in the winter, I have it for lunch at least twice a week! 🙂 Thank you so much for taking the time to leave a review, I really appreciate it! -Stephanie
Delicious, I left out the cheese and cream
Happy to hear you enjoyed it Julie! Thanks so much for taking the time to leave a review!💖
Just made this tonight – what an amazing soup. So flavorful and easy to make. Did not have celery salt but had the rest of the ingredients on hand. Thank you!
You’re very welcome Peggy, thanks so much for taking the time to leave a review, I’m so happy you liked the soup!💗
LOVE this soup! I DOUBLED recipe right off. The only sub I made is I used Old Bay instead of salt, and slightly less rosemary and thyme. I also use Better than Bouillon for 4 cups plus 2 cups of water). PUREED silky smooth, no need for cream. YUM!
I love that silky smooth consistency with this one, sounds like you nailed it Elaine! Thanks so much for taking the time to leave a review!💗