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 make this vegan? Yes, olive oil is an option or coconut oil instead of butter. Coconut oil might sound odd but the light coconut flavor with onion/tomatoes is pretty delicious.
  • 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

Subscribe to Our Newsletter

Subscribe to our newsletter with easy, delicious, and fresh recipes and receive our eCookbook with 16 of our most loved recipes for free! Click Go to signup for free!

525 comments… Leave a Comment
  • Joline March 30, 2020, 8:02 pm

    I’ve been making this soup for a few months now. So versatile. I tend to add more veggies (carrots, celery, roasted peppers) and adjust with seasoning as needed. A very simple base soup as is, or with additions. Thanks for the simple recipe! My kids LOVE it!

  • Jan Klein March 30, 2020, 10:23 am

    LOVE IT!

  • Teresa Caperton March 28, 2020, 3:58 pm

    I have never had luck making good tomato soup. Who mew less is more? This recipe is so easy, too. I use 1 tsp salt and 1 tsp sugar, to balance out the acidity. Also, I use 2 14.5 oz cans Hunts No Salt Added Diced Tomatoes instead of fresh. This is now my go to tomato soup recipe! Thank you!

  • Kristin March 27, 2020, 2:30 pm

    I made this soup while the city has been on COVID quarantine. I added milk and basil. Very good.

    • Heidi April 1, 2020, 11:42 am

      Hey! Did you use milk instead of water, or in addition to? Sounds delicious!

  • CAROL March 24, 2020, 7:18 pm

    Wow thanks to our garden and and this recipe what a lovely lunch ny husband and I had. Easy to make and no stress as well. Just into the Corona virus loc down so economical as well.

  • Kirstie March 20, 2020, 6:41 pm

    Wow! Made this recipe today and was amazed with how easy it was and how well it turned out. I doubled the recipe to make enough for my family and it was a hit! They loved it. Thank you so much for sharing I will definitely be making again.

  • Tara March 8, 2020, 8:10 pm

    Absolutely loved it! Did add some extra spices, we like a wee heat. Was wondering if this could be canned? Looking to try my first batch of canning and this would be perfect! Thanks again!

  • Jamie Alvarez March 7, 2020, 4:08 pm

    This soup is absolutely delicious! My kids loved it and asked me to make more the next day.

  • Tino March 4, 2020, 4:33 am

    This is actually not bad! Granted i used margarine instead of butter and i didnt use the exact amounts of the ingredients, but i can taste where it was going and thats a surprisingly tasty place!

  • Kimberly Matthiensen February 29, 2020, 6:01 pm

    Can this be made in the instant pot?

    • Joanne March 3, 2020, 7:00 pm

      Hi Kimberly, While we are sure this recipe can be adapted to work in an Instant Pot, we have not tried it ourselves. You might need to do a little experimenting. I’d expect that you need to reduce the water a bit since the instant pot does not allow steam to escape.

    • GS April 14, 2020, 12:37 pm

      I just made this for lunch and it was SO delicious! I only had canned tomatoes with garlic and extra virgin olive oil, but wow, it gave it amazing flavor along with the butter and onion. I also added a little cream cheese just because I wanted it to be a little creamier. Delicious and husband approved. Thank you for sharing!

  • Shirley February 26, 2020, 9:12 pm

    Omg Omg !!! This is the best tomatoe soup I’ve ever made. This is my 2nd time mking it. It’s so quick and so easy. But I added a can of stewed tomatoes, a bay leave and a frozen parmesan end. I’ll in love with it.

  • Kivani February 23, 2020, 6:15 pm

    This is fantastic, thank you so much for sharing such as simple and delicious soup. I only had a half can of tomatoes, so I threw in some roasted red peppers from a jar and it was divine. Thank you again!

  • Lily February 21, 2020, 5:17 pm

    This is so good, and so easy. It’s now my go to recipe for t soup – make it once a week….thanks !!!

  • Leah February 14, 2020, 6:02 pm

    I use this as a base for my sausage and tortellini soup! It’s so awesome! They only thing I add in to start that is different from the recipe is garlic. Thank you for the great recipe!

  • Heather February 10, 2020, 1:45 pm

    Just as simple and tasty as promised! Thanks for the recipe!


Leave a Comment/Review

All comments are moderated before appearing on the site. Thank you so much for waiting. First time commenting? Please review our Comment Guidelines. You must be at least 16 years old to post a comment. All comments are governed by our Privacy Policy & Terms.

* Required fields (Email address will not be published)

Did you make it? How was it?:


Previous Post: Next Post: