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This one pot easiest herby tomato Soup with melted Brie crostini is the simplest and most delicious bowl of tomato soup. End of summer tomatoes roasted with onions, garlic, fresh garden herbs, and olive oilโฆall pureed into the creamiest bowl of soup. Top each bowl of soup with a crusty piece of sage and brie crostini. Every spoonful is full of summer flavors!


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The honest truth? I really hesitated to share a tomato soup recipe. But itโs the end of summer and when you have about twelve heirloom tomatoes sitting on the counter with zero plans to use them, you make tomato soup.
But with melty brie crostini on top. Because letโs be honest, whatโs the real reason you make tomato soup? For that melty, cheesy toast or grilled cheese, you eat alongside it. And you know itโs true.
In all seriousness here, I was really dragging my feet on a tomato soup recipe. Do we need tomato soup? Is tomato soup just kind of lame? Like almost retro? These are all the questions I asked myself in an effort to talk myself out of making tomato soup. But then Monday rolled around, and as I said, I had a lot of tomatoes on the counter, Brie in the fridge, and dreary overcast skies. After a five-minute pep talk and a few quick texts back and forth with my sister in law, I was making tomato soup.
And you know? Itโs probably my very favorite recipe of the week. I know tomato soup seems basic, but you guys? Every spoonful of this soup is truly roll your eyes back delicious.
And yes, the Brie crostini on top really is KEY. Clearly my favorite part.

The detailsโฆ
My thought on tomato soup is that if youโre going to make it, you should keep it fairly simple and make it very creamy.
Start out by roasting together plenty of tomatoes, a sweet onion, garlic, thyme, fresh sage, olive oil, salt, and pepper. You want to roast the tomatoes until theyโve charred a little and released their juices. Roasting them really brings out their sweetness and itโs my preferred way of cooking a tomato. So much flavor is added and roasting will create a rich soup versus one that lacks in flavor.

The trick is toย roast the tomatoes inside a large dutch oven that can go from the oven to the stove. This will save so much time, clean up, and makes this a one-pot and done kind of recipe.
Once the tomatoes are roasted, transfer the roasted tomatoes to the stove, add a splash of milk or cream, and puree until smooth. Stir in a sprinkle of cheddar and lots of fresh basil.
For the milk, I really love using creamy canned coconut milk. It might sound odd, but Iโve found this to create the creamiest bowl of soup and it cuts down a bit on the dairy too.

Youโre almost done, but donโt forget the crostini!
Yes, that brie crostini, itโs really what SOLD me on making this tomato soup.
Youโll need fresh ciabatta bread, sage, and brie, plus a bit of olive oil. The sage cooks up in the oil on top of the bread. It then becomes crispy, almost fried. The Brie just melts over top and itโs every bit as delicious as it sounds. I know sage and Brie are not always paired together, but Iโm pushing you all to try it. I think itโs one of my favorites herbs to enjoy brie with. Sage has just the right balance of warming flavor to compliment the rich brie.
Make sure you make it while the soup is simmering on the stove so that when you pull the melty crostinis out of the oven, you can enjoy them immediately with your soup. Nothing is better.
Tip? Always keep a wheel of Brie in the fridge. You just never know when youโll need it. And like a good glass of wine, it can really save the night.

Now, just ladle up that soup and add those crostinis.
Doneโฆso simple, so easy and so good!
So what do we think? Are you looking to use up some tomatoes this week? Can you stop at the store for Brie? Fingers crossed you answered yes to all of these questions. If youโre not quite sure that tomato soup is your thing, I urge you to give this a try. Fresh tomatoes are a game-changer and adding bread and brie on topโฆI can just about guarantee youโll love this!
Oh, one last thing โ double the crostini โ the reasons are obvious.

Looking for other late summer tomato recipes? Here are a few ideas:ย
Everything Cheddar Tomato Bacon Grilled Cheese
Roasted Tomato Cheddar Tart with Ranch Seasoning
One Pot 4 Cheese Caprese Mac and Cheese
Lastly, if you make this easiest herby tomato soup with melted Brie crostini be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, donโt forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
Easiest Herby Tomato Soup with Melted Brie Crostini

Ingredientsย
- 6-8 medium tomatoes quartered
- 1 sweet onion quartered
- 4-6 cloves garlic smashed
- 3 tablespoons extra virgin olive oil, plus more for rubbing
- 2 tablespoons fresh thyme leaves
- 8 fresh sage leaves
- kosher salt and black pepper
- 1 cup canned coconut milk, plus more to thin as needed
- 1/4 cup shredded sharp cheddar cheese
- 1/2 cup fresh basil roughly, chopped
- 4 slices ciabatta bread
- 4 ounces brie, sliced into 4 slices
Instructionsย
- 1. Preheat the oven to 425 degrees F.ย 2. In a large oven safe pot, combine the tomatoes, onion, garlic, thyme, 5 sage leaves, olive oil, red pepper flakes, and a pinch each of salt and pepper. Transfer to the oven and roast for 20-30 minutes or until the tomatoes begin to char and release their juices. Let cool slightly.3. Transfer the roasted tomato mix and their juices to a blender, puree until smooth. Return the soup to the pot and place over medium heat on the stove. Stir in the milk and cheddar cheese. Cook 5-10 minutes, until warmed. Stir in the basil and season the soup with salt and pepper. 4. Meanwhile, make the crostini. Finely chop the remaining 3 sage leaves. Place the bread on a baking sheet and rub with olive oil. Transfer to the oven and cook 5 minutes. Flip the bread, sprinkle with sage, and add a slice of brie to each. Return to the oven and cook 5 more minutes or until the brie is melted.ย 5. To serve, ladle the soup among bowls and top with fresh basil. Serve alongside the brie crostini. Enjoy!
Nutrition
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
Did you make this recipe? Please rate & comment below.

























Making this today as a test run for Thanksgiving. Does it reheat well? And should I wait until a bit before serving to add the shredded cheese and coconut milk?
Love all of your dishes! Really looking forward to this one!
Thanks so much, Jen! Yes, this soup reheats nicely. You can go ahead and wait to add the milk and cheese:) Have a great weekend!
I love this recipe and have made it over and over again!
Hey Emily,
Happy Monday! Iโm thrilled to hear this recipe turned out well for you!
Thanks for making it and your comment:)
Can I substitute regular milk for the coconut milk?
Hi Alyssa,
You bet, that will work nicely for you:) I hope you love this recipe, please let me know if you give it a try! xT
By farโฆhands downโฆ the best tomato soup Iโve ever made. Already had three requests for the recipe and Iโve made it three times is the last six weeks. Great way to use up late arriving garden tomatoes. Once again your recipes are a delightful win win
Hey Dottie,
Awesome! So glad to hear this recipe turned out well for you, thanks for making it! Have a great weekend! xT
I love how easy this is to make! I accidentally put all 8 sage leaves in the pot during roasting. (Oops!!). What kind of tomatoes did you use? I used tomatoes on the vine and did 8, but I think next time I may need to add more. Also, when I roasted them, I didnโt get a char and I extended the time another 10 minutes. Any tips?
Hi there! You could broil the tomatoes if you’re wanting to get more of a char on them! xT
Do you think I can use canned tomatoes ?
Hi Barbara,
Sure, that would be okay for you to do. I hope you love this recipe, please let me know if you give it a try! xT