Slow Cooker Tomato Basil Soup
This slow cooker tomato basil soup has been a popular recipe in the food world and this particular recipe has a big cut in calories with stellar results!
You’ve probably seen this recipe – it’s crazy popular all over the internet.
In fact, I debated about even posting it but in the end, it’s so delicious (we’ve made it several times) that I decided I needed to share in case you are in the .01% of people who haven’t seen it floating around.
When recipes like this are reposted and reposted and reposted, I have a little tiny personal commitment to myself that I won’t post the recipe unless I’ve varied it enough to merit another repost.
In the case of this tasty soup, I reduce the butter by half and use fat free half-and-half. Big cut in calories with stellar results.
Of course, that may all be negated by the fresh, homemade croutons adorning the top of the soup. I have to insist, though, that you try it with the croutons.
I can’t eat it any other way and neither should you. How can you resist a delectable bit of golden, crunchy heaven on top of the creamy, flavorful soup?
Serious yum factor. If you have been wondering if the hype around this soup is justified, I’ll add my vote that it is, but the croutons are key.
Did I mention that? Croutons.Are.Essential. Don’t worry, here’s an easy tutorial {scroll to the bottom of the post} to help you on your way to some major crouton love.
What to Serve With This
- Homemade Croutons
- White Bean and Tuna Salad with Crackers
- Fresh, seasonal fruit
One Year Ago: Overnight Maple & Brown Sugar Oatmeal
Two Years Ago: San Francisco Chops {Slow Cooker}
Three Years Ago: Tomato Bisque Soup
Slow Cooker Tomato Basil Soup
Ingredients
- 2 cans (14-ounces each) petite diced tomatoes, undrained
- 1 cup finely diced celery
- 1 cup finely diced carrots
- 1 cup finely diced onions
- 1 teaspoon dried oregano
- 1 tablespoon dried basil
- 4 cups low-sodium chicken broth
- 1 bay leaf
- ¼ cup butter
- ½ cup flour
- 1 cup freshly grated Parmesan cheese
- 2 cups fat free or regular half-and-half, lightly warmed
- 1 teaspoon salt
- ½ teaspoon black pepper
- Croutons for serving
Instructions
- In a 5-quart slow cooker, combine the tomatoes, celery, carrots, onions, oregano, basil, broth, and bay leaf. Cover and cook on low for 5-7 hours until the vegetables are tender.
- About 45 minutes before serving, melt the butter over low heat in a medium saucepan. Add the flour and cook, stirring constantly, until the mixture is golden, about 3 minutes. The mixture will be crumbly, but that’s ok.
- Whisking constantly, slowly ladle in 1 cup (or a ladleful) of the hot soup from the slow cooker. Whisk until smooth and bubbly. Add another cup or ladleful and stir again until smooth. Add another cup or two and stir until smooth.
- Stir the creamy, hot mixture back into the slow cooker. Add the Parmesan cheese, half-and-half, salt and pepper, adding more salt and pepper if needed.
- Cover and cook on low for 30 minutes until ready to serve (at this point, you can blend for smoother texture, if desired). Serve with homemade croutons, if desired (and trust me, you’ll want to desire it).
Notes
Recommended Products
Recipe Source: adapted from Leigh Anne at Your Homebased Mom, originally from 365 Days of Slow Cooking
Do you think I could freeze the base of this soup and after it is thawed, add the half-and-half and Parmesan? Thanks!
Yes, that should work great!
We have loved this recipe for years, ever since friends brought it for a dinner after having my youngest baby. We use an immersion blender since we are a “no chunks” family and add a little more Parmesan cheese, yum! We always make homemade croutons to go with it. Perfect for autumn evenings.
I have been making this for years, often in a dutch oven on the stovetop, I love, love, love this recipe.
We don’t buy too many dairy products, so I buy canned evaporated milk to have on hand when soups call for milk or cream. Used 12 oz. And it turned out amazing. Yummy soup!!
I did this in the instant pot because I wanted to eat it for lunch and the slow cooker was too slow. I used the sauté function to soften the veggies (I also used my mini chopper to do those). Then I cooked on high pressure for 10 minutes. I let it natural release because I ran out to the store to get half and half 🙂
Then I added the flour/butter mixture and slow cooked it in the instant pot for 30 minutes. Then used my immersion blender to make it smooth and creamy. Same out exactly the same as if it was in the slow cooker all day. I feel like you need to blend it all together to get the tomato flavor back in front so all bites are consistent. I can not wait to sit down and eat!
Thanks for posting IP instructions! This is our fav tomato soup recipe but sometimes I don’t have time to put it in the slow cooker.
This is a good one! Love it!
I’ve made this soup many many times so I thought I’d make a comment! I love it! It has such a good flavor. I’ve made it for many church functions and everyone always asks for the recipe. Then I get to tell them about your website and all the yummy recipes you have! Thanks Mel!
Thanks, Erin! So happy this is a go-to recipe for you!
Hi Mel-
What do you think about using fresh garden tomatoes? I’m trying to use up what I have picked.
Thanks for saving me time after time with your amazing recipes.
Tami
I haven’t tried it, but I think it’s definitely worth a try, Tami!
Has anyone tried using 2% milk in place of the half-and-half?
I know this comment is 3 years late but in case any other readers wonder, I used 2% milk in place of the half and half and also used just shy of 1/2 cup of all-purpose gluten free flour and it was delicious. I have never used half and half so I can’t compare but it’s great with milk. My son requested this for his 9th birthday dinner – it’s one of his favorites.
Do you think you could pressure this in the Instant Pot?
Yes, definitely the vegetable mixture in the first step!
I just made this tonight, and I have to admit, that it was the first recipe on your blog (that I’ve made) that I haven’t loved. It was just ok, and I don’t think I will make it again. There wasn’t much tomato flavor and I added fresh basil. If I do end up making it again, I’ll add more tomatoes– probably some fresh chopped up at the end, and maybe some a bit of garlic. I don’t know what else to do to make it something I’ll want again. Kinda makes me sad. 🙁 Don’t worry though, I’m a huge fan of numerous other recipes on here!!
Hi Mel,
Can you substitute Smoked Gouda for the cheese
You could definitely try! I think that sounds yummy.
OK…will let you know
I just prepared this last night and was disappointed in the lack of tomato flavor. Fortunately, there are only two of us so have a lot leftover. I think I will blend the soup and add either tomato sauce or paste.
Hey Mel,
I made the soup today. Used the food processor to chop the veggies but otherwise followed the directions. After 5 hours on low, the veggies were still crunchy. So I blended most of it up, but still have a crunch to it. Is this normal or did I do something wrong? Thanks
It should be fairly soft after cooking in the slow cooker. Each slow cooker varies in heat and it sounds like maybe with your slow cooker you’ll need the max amount of time (the 7 hour mark).
We have a 90 year old grandma who lives in the little attached apartment of our house. We have taken this to her before and she just called tonight to say this was the best tomato soup she has ever had. She said she lived through the depression and lived on tomato soup and this was the best.=) So thank you.
Made this and loved it!! Thank you for the wonderful recipe!
Just got done making this and having it for dinner.. it was delicious!!! Instead of making homemade crutons I used store bought ranch crutons.. fantastic choice!
This is one of my favorite soups and love that it is in the crockpot. I use my immersion blender after the veggies are done cooking so it is a smooth soup. So tasty on a fall/winter day!