Easy Three-Ingredient Tomato Soup

My favorite tomato soup recipe! You wouldn’t think that three ingredients — butter, onion, and tomato — can come together to make such a velvety and delicious tomato soup, but let me tell you. They can. Jump to the Tomato Soup Recipe or watch our quick recipe video showing how to make it.

Watch Us Make the Recipe

How To Make The Easiest Tomato Soup From Scratch

This simple homemade tomato soup is quick, easy, and insanely delicious.

The soup is inspired by one of the most famous recipes out there — Marcella Hazan’s Tomato Sauce. Butter, tomatoes, and onion are simmered until slightly thickened. Out comes the onion and the sauce is ready to be spooned over pasta.

It’s genius and absolutely delicious. We use the same three ingredients in this tomato soup, but add a little water and blend everything together just before serving.

Easy Three-Ingredient Tomato Soup Recipe

Making The Soup

Here’s how to the best (and easiest) tomato soup:

Combine butter, onion, and tomatoes. Grab a Dutch oven or pot, place it over medium heat and melt the butter. Add half an onion that’s been cut into large wedges and a large can of tomatoes.

Add water or broth and simmer. Bring everything to a low simmer, add some salt and leave it alone for about 40 minutes. See how creamy it gets? That’s thanks to the butter.

Blend. I find an immersion blender is useful, but a blender works, too. Adjust the soup for seasoning then grab a bowl…and maybe a grilled cheese sandwich? This soup is also amazing topped with homemade croutons or served next to this easy buttery garlic bread.

Tomato Soup Ingredients
Tomatoes (canned or fresh), onion, and butter.
Cooking tomato soup
What the tomato soup looks like after adding water (or broth) and simmering.

What Tomatoes Should I Use

This tomato soup is excellent with canned tomatoes. I love using whole peeled tomatoes or crushed tomatoes. By the way, we love San Marzano Tomatoes and are always pleased with tomatoes from Muir Glen. Neither are watery and both taste great.

You can also use fresh tomatoes. You will need 10 to 12 whole tomatoes (or about 2 pounds). It’s best to peel them, but we have made the soup with unpeeled tomatoes.

A Quick Recap

This is your new favorite weeknight meal. Promise.

  • This tomato soup has three ingredients (plus water and salt).
  • Everything is tossed into a pan — no browning, no hovering over a stove.
  • You can use canned tomatoes — and should.
  • Did I mention there are only three ingredients?

What Our Readers Are Saying

If you don’t believe that our recipe helps you achieve perfect tomato soup at home, take a look at what our readers are saying about the recipe! More reviews are in the comments section below.

“WOW!! What a delicious and easy tomato soup, my three and one-year old were as thrilled as my husband and I were.” – Ashley

“This is the best tomato soup, hands down!! Cannot say that emphatically enough. Did not change a thing from the recipe and it was perfect. Couldn’t be easier to make.” – John

“Made this exactly as written. Oh my gosh, this was amazing!!!” – Dayna

Easy Three-Ingredient Tomato Soup Recipe

More Easy Soup Recipes

Recipe updated, originally posted October 2015. Since posting this in 2015, we have tweaked the recipe to be more clear and added a quick recipe video. – Adam and Joanne

Easy Three-Ingredient Tomato Soup

  • PREP
  • COOK

You only need three main ingredients to make this velvety, rich tomato soup recipe. This, friends is your new favorite weeknight meal.

Makes 2 generous servings

You Will Need

4 tablespoons unsalted butter

1/2 large onion, cut into large wedges

1 (28-ounce) can tomatoes, we prefer to use whole peeled or crushed, see notes for fresh tomatoes

1 1/2 cups water, low sodium vegetable stock, or chicken stock

1/2 teaspoon fine sea salt, or more to taste


    Melt butter over medium heat in a Dutch oven or large saucepan.

    Add onion wedges, water, can of tomatoes with their juices, and 1/2 teaspoon of salt. Bring to a simmer. Cook, uncovered, for about 40 minutes. Stir occasionally and add additional salt as needed.

    Blend the soup, and then season to taste. The soup doesn’t need to be ultra-smooth, some texture is a nice touch. An immersion blender does make quick work of this, or you can use a blender. If you use a regular blender, it is best to blend in batches and not fill the blender as much as you usually would since the soup is so hot. We like to remove the center insert of the lid and cover it with a kitchen towel while blending — this helps to release some of the steam and prevents the blender lid from popping off (which can be a big, hot mess).

Adam and Joanne's Tips

  • Can I use fresh tomatoes? Yes. If you want to use fresh tomatoes, you will need 10 to 12 medium tomatoes (or about 2 pounds). You can peel them, but we skip this step since we will be blending the soup in the end anyway.
  • Can I add basil? This soup is delicious with and without basil. Adding a handful of fresh basil at the end before blending the soup is a fantastic idea.
  • Nutrition facts: The nutrition facts provided below are estimates. We have used the USDA Supertracker recipe calculator to calculate approximate values. We have omitted salt since you will need to add to your tastes.

If you make this recipe, snap a photo and hashtag it #inspiredtaste — We love to see your creations on Instagram and Facebook! Find us: @inspiredtaste

Nutrition Per Serving: Serving Size Half of the recipe / Calories 348 / Total Fat 24.9g / Saturated Fat 14.8g / Cholesterol 61mg / Sodium 1485.4mg / Carbohydrate 29.6g / Dietary Fiber 4.5g / Total Sugars 15.4g / Protein 7.8g
AUTHOR: Adam and Joanne Gallagher

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431 comments… Leave a Comment
  • Jill Smith January 27, 2019, 10:37 am

    I have also made this many times and my husband and I love it. It is a cold day in/for Atlanta and I just put this on the stove to cook for lunch with grilled cheese sandwiches. Comfort food at its finest. I used to make a more complicated recipe that was served at Mick’s restaurant, but why go to all that trouble when this is better?

  • Michele January 24, 2019, 5:59 pm

    This is the best tomato soup I have ever tasted. I have made it for my family many times over. The only thing I do differently is add some Basil and Parsley. That’s it! Amazing!!!

  • Amanda January 23, 2019, 1:30 pm

    Would canned stewed tomatoes work for this?

    • Joanne August 19, 2019, 3:34 pm

      Hi Amanda, We have not cooked with canned stewed tomatoes before. I’d assume you will be fine, just check if sugar/salt has been added to the tomatoes so you know if you need to be careful adding the salt we recommend in the recipe.

  • TeeVee January 21, 2019, 5:39 pm

    This is delicious!!! 😋 Made no revisions and my whole family loves it (the only thing I add, if it tastes bitter, is a sprinkle of sugar) I always double the recipe to make sure there are leftovers! After making it a several times, I started spicing it up with red pepper flakes….sooo good! Thank you and I can’t wait to try more of your recipes!

  • Dayna L January 20, 2019, 2:23 pm

    Made this exactly as written. Oh my gosh, this was amazing!!! Will definitely be adding this into our regular soup rotation! Thank you.

  • Vonnie January 15, 2019, 8:29 pm

    Wow! This soup is so good. I used can of tomato sauce and diced tomatoes with a whole onion. I did not want to wait 40 minutes so I blended it all to reduce cooking time.

  • Christopher January 15, 2019, 11:35 am

    Is it possible to substitute the tomatoes (canned/fresh) with canned tomato sauce?

    • Joanne January 15, 2019, 2:48 pm

      Hi Christopher, If it’s just tomatoes that are crushed/pureed into the sauce, you should be fine.

  • Andrew craddock January 13, 2019, 9:17 pm

    I have made this twice now, but I leave out the onions and add a dash of Louisiana style hot sauce. It’s been a big hit.

  • Linda January 10, 2019, 8:29 pm

    Needed a bit of sugar and a rue with flour and brown butter. Wasn’t thick enough but after I added this I loved it

  • Suzanne January 10, 2019, 7:19 pm

    I drove home today with the temperature being freezing. As I was driving, I (as usual) struggled with what would be dinner for the 4 kids (single mom). My daughter called and asked for grilled cheese and I immediately thought of tomato soup because even my son on the spectrum likes it. It was fabulous! and although he complained as it was cooking – “why don’t we have any cans?…its not going to be good…it will be different…are you sure it won’t be different?” After bothering me for about 10 minutes while I let the steam out of the instant pot, I finally lost it and said…it will be fine – or you can eat hot dogs (and so he got 4 hotdogs out and ate them while the steam was releasing). Anyway, I gave him a small bowl with milk added to cool it off and he ate it in about 5 minutes and I said, do you want more? and he took a whole big bowl which he also finished. So… a big hit and now I don’t have to stock up on canned tomato soup!

  • Susan January 6, 2019, 6:40 pm

    I didn’t like this soup. I tried very hard to like it because I love tomatoes.

    • Joanne August 19, 2019, 3:32 pm

      We are so sorry you didn’t enjoy the soup.

  • Traci January 6, 2019, 3:07 pm

    Can you make this in the slow cooker?

    • Joanne August 19, 2019, 3:32 pm

      I am sure that you can, but we have not tried this yet in our kitchen.

  • Rose January 3, 2019, 5:38 pm

    Made this today. Easy and great taste. I doubled the recipe so glad I did. Dont be afraid of the onions just pucks up the taste. I added heavy cream at the end. Wish I had some fresh basil but this soup doesn’t disappoint. Thanks

  • Allie January 2, 2019, 4:12 pm

    This was amazing. I added one whole small onion, because I love onions. Halfway through cooking I added a little garlic powder and dried basil. It didn’t need it at all. I’m adding this to my recipe box and never buying canned soup again. Thankyou!

  • Claire Weems January 2, 2019, 1:36 pm

    Like what I see. Please send your weekly newsletter.


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