Slow Cooker Tomato Basil Parmesan Soup

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Total Time 4 hours 20 minutes

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Creamy and rich Tomato Basil and Cheesy Parmesan Soup made in the crockpot! Comfort food at its best!  

Enjoyed this soup? Try my Asparagus Parmesan Soup, Panera Bread Cheddar Broccoli Soup, and Easy Creamy Potato Soup next!

Slow cooker tomato basil parmesan soup in a bowl with a piece of bread dipped in it.

It’s officially soup season. At least, according to my mother it’s officially soup season. About three weeks ago she hosted a soup party. I brought two kinds, she made three kinds, and we all gorged ourselves on soup galore one rainy Sunday evening. I can’t say that I didn’t enjoy it, because oh did I ever. I love me some soup. Particularly when it is creamy, rich, and cheesy.

Slow cooker tomato basil parmesan soup in a bowl with a piece of bread dipped in it and a spoon on the side with more bread and spices in the background.

Growing up I was never a tomato soup fan, and to this day I don’t like it straight out of the can. But creamy tomato-basil soup, that I can do. And by “do” I mean that I could eat it for breakfast, lunch, dinner, and midnight snack for days on end. Rain or shine. Summer, winter, fall, I’m impartial. My husband prefers that I wait until it’s actually cold outside to serve soup for dinner, and it takes all of my self control to put it off until September. In Utah, September weather is a gamble. (Actually every day’s weather is a gamble in Utah but let’s not get into that…) It may or may not be chilly in September but I can always count on the leaves changing color during this month and that’s when I start whipping up cozy soups.

Top view of slow cooker tomato basil parmesan soup in a bowl with a piece of bread dipped in it.

This has to be in the top three or four best soup recipes I’ve ever made. Scratch that. The top two soup recipes I’ve ever tasted! It’s so good I just want to plunge my entire face into a giant bowl of it this instant. But alas, I shall refrain from such behavior. Instead I’ll just devote all of my soup-face-plunging energy to convincing you to make it yourself. It is E to the Z I tell ya. Just throw a few simple ingredients into the crockpot, set it, forget it, then remember it, and come back to finish it off in the last 30 minutes or so before you’re planning to serve it up. And if you really wanna get fancy, serve some crusty bread alongside this tomato basil parmesan soup for dipping and dunking – the kids will thank you later.

Okay you caught me, we don’t have kids . . . I’m the one who does all of the bread-dunking around here. C’mon you are too.

Slow cooker tomato basil parmesan soup in a bowl with a piece of bread dipped in it with a spoon on the side and more bread and spices in the background.

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Slow Cooker Tomato Basil Parmesan Soup
4.91 from 77 votes

Slow Cooker Tomato Basil Parmesan Soup

Creamy and rich Tomato Basil and Cheesy Parmesan Soup made in the crockpot! Comfort food at its best! 
Prep: 20 minutes
Cook: 4 hours
0 minutes
Total: 4 hours 20 minutes
Servings: 4 servings
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Ingredients 

  • 2 15-ounce cans diced tomatoes
  • 1 10-ounce can tomato sauce
  • ¼ cup fresh basil, finely chopped
  • 1 tablespoon minced garlic
  • 1 tablespoon salt
  • 1 teaspoon pepper
  • 1 medium white onion, diced
  • 1 cup heavy cream
  • 4 cups chicken or vegetable broth
  • 2 cups shredded parmesan cheese

Roux

  • 3 tablespoons butter
  • ¼ cup flour
  • 1 cup heavy cream, see note

Instructions 

  • Add tomatoes, tomato sauce, and next 7 ingredients (through broth) to a slow cooker/crockpot. Cover and cook for 2 hours on high or 4-8 hours on low. (If you are home, give it a stir every now and then and scrape down the sides)
  • About 30-40 minutes before serving transfer soup to a blender or food processor and puree until smooth, then return to crock pot.
  • Prepare the roux. Begin by melting the butter in a medium sauce pan over medium heat.
  • Add flour to melted butter and stir until flour clumps up. Slowly whisk in the heavy cream (or half & half) until mixture is thickened and smooth. Add roux and parmesan cheese to crockpot and stir to combine.
  • Allow to cook another 20-30 minutes until cheese is completely melted. Give it a good stir before serving. Top with additional basil and parmesan cheese if desired.

Notes

Heavy cream: part or all of the heavy cream can be swapped for fat free half and half to lighten up this soup. 

Nutrition

Calories: 689kcal | Carbohydrates: 16g | Protein: 24g | Fat: 59g | Saturated Fat: 36g | Cholesterol: 208mg | Sodium: 3429mg | Potassium: 425mg | Fiber: 1g | Sugar: 2g | Vitamin A: 2289IU | Vitamin C: 20mg | Calcium: 676mg | Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this?Leave a star rating or comment below!

Recipe adapted from Let’s Dish Recipes.

Tiffany of Creme de la Crumb in the kitchen

Welcome!

Hey there, I’m Tiffany – chef, photographer, mother, and avid taco eater. I am passionate about turning simple flavors and ingredients into tasty meals the whole family will love, with minimal prep and cleanup so there’s more time to spend eating and enjoying. Stay awhile, and help yourself to a taco or two!

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4.91 from 77 votes (22 ratings without comment)

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193 Comments

  1. kelsey says:

    5 stars
    I just made this and it’s fantastic! Pair it will grilled cheese and it’s perfection.

    I’d definitely recommend using low sodium chicken stock or not adding additional salt.

    All together a great recipe! I’ll be making it again!

  2. Dianna says:

    Can I make ahead and freeze the tomato basil soup?

    1. Tiffany says:

      Yes you can!

  3. Amanda says:

    Canned tomato sauce… Is that like jarred but without seasoning? I’m not sure what to look for.

  4. Amanda says:

    I haven’t even made this yet but i already know it’s gonna be banginnnn! My ex bf still comes around cuz we are friends and he often asks for those honey chipotle chicken crispers. (Yes I was the commenter who was all caps omg these things right here. LOL). I have tried one other tomato basil soup recipe and it was eh but I know you won’t lead me wrong. My only difference is I am going to use petite diced tomatoes and not blend it because, well, I don’t have a blender. I like a little tomato chunk anyway. Although I am not sure how I am going to make the basil smooth out and not be chunky, hopefully it will just be wilty and work out. I will just have to chop it very well I guess. I will let you know, unless you have any ideas!

    1. Tiffany says:

      Ha! Everyone who makes this is giving it rave reviews so I hope you love it just as much! I did have a reader who used fresh tomatoes and LOVED it so I know that will be great! As for the basil, I’d just chop it up as finely as you can and it will still work great!! 🙂

      1. Amanda says:

        5 stars
        Another spectacular recipe!! Just finished my dinner….after my first bite I basically wanted to dump my bowl back in the crock pot and bring the whole thing to the table and the whole baguette it was so freakin delicious!! I ate 2 bowls haha! The basil went ok, chopping it was a chore, but worth it! I ran the soup through my strainer! It helped, but I threw my tomato chunks back in because I like them and THEN I added pepperjack cheese in addition to the parmesan. Didn’t make it spicy but, it sure did kick up the flavor!!

  5. Beckey says:

    5 stars
    I made this soup the other night and my family has officially declared it “the BEST soup they have ever eaten”!! It’s a win and will be a regular part of my crockpot rotation from now on! Thanks so much!!

    Beckey

  6. Katherine Granada says:

    5 stars
    This recipe is AMAZING!!! It is sooo delicious! I used 10 fresh tomatoes instead of canned tomatoes and 4 small (70g) cans of tomato paste instead of tomato sauce. It was delicious!! It made so much and with sliced French bread on the side was extra delicious! I followed the recipe exactly with exception of the tomatoes (which I blended in the blender with the vegetable broth before cooking). Great, great, great! One of the best tomato soups ever tasted! I was a bit worried that it might have been to much cream but it was very good! And it all took about 1.5 hour (preparation and cooking) instead of the 4+ hours! Great recipe!! Thank u so much for sharing!

    1. Tiffany says:

      I’m gonna have to try that! I lOVE fresh tomatoes so I’m sure I’d go nuts for fresh tomatoes in this soup – it’s already my favorite tomato soup in the world and that would just make it EVEN BETTER! 🙂 🙂 Thanks Katherine! 🙂

      1. Katherine says:

        Haha, you’re welcome, Tiffany! Actually, thanks to YOU for sharing it! 🙂 my girlfriend totally loved it as well! I have saved this in my recipes folder 🙂 Enjoy the fresh tomatoes! I always think fresh is better over canned. I Hope you enjoy it :]

    2. emily says:

      Hi, How long should I cook in slow cooker for, and at what temperature, when using the fresh tomatoes? Thank you

      1. Tiffany says:

        Hi Emily! You can follow the same instructions written in the recipe if you’re using fresh tomatoes. I’ve had a few readers write in saying that they followed the recipe except for using fresh tomatoes and loved the results! 🙂

        1. emily says:

          Thank you Tiffany! I appreciate you replying so quickly 🙂 Can’t wait to try it!

          1. Tiffany says:

            No problem at all, I try to get back right away whenever possible in case the question is about a recipe you’re about to make or currently making! I hope you love this, it’s been getting fantastic reviews and I’m personally in love with it 🙂

    3. Kelly says:

      The cans of tomato paste you used…. the smallest can I found was 170 g (6 oz) not 70g. Should I just use about a can and a half you think?

  7. Johanna Mellis says:

    I am living abroad for the year and do not have a crockpot or slow cooker with me. How long would this need to cook on the stovetop? Also, did you use a blender to smooth out the texture of the diced tomatoes? Thanks, it looks delicious!

  8. Katrina says:

    This sounds wonderfully delicious! Is there a specific brand of tomato sauce you use, or can I just use whatever I like?

    1. Tiffany says:

      You can use any you prefer! 🙂

  9. Alexis @ Upside Down Pear says:

    This sounds like a delicious comfort soup for fall/winter (brrr who wants to think that far ahead yet!). Tomato and basil are a perfect combination that they even grow well together. Planting basil near your tomato plants is supposed to boost the tomatoes flavor. Sigh…I wish I had a green thumb. I guess I’ll just have to console myself with a bowl of this amazing soup!!

  10. Thalia @ butter and brioche says:

    I can imagine how good this soup would have tasted, basil, tomato and parmesan is one of those killer flavour combinations! Definitely need to recreate the recipe, looks seriously delicious!