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Easy Slow Cooker Tomato Basil Soup (with Canned Tomatoes)

This easy and flavorful Easy Slow Cooker Tomato Basil Soup with Canned Tomatoes is a classic recipe made with tomatoes, basil, and simple seasonings that come together quickly in the Crock Pot. Serve it with grilled cheese or crackers for a satisfying lunch or dinner.

Easy Slow Cooker Tomato Basil Soup (with Canned Tomatoes) in a bowl with croutons and basil leaves with a crock pot in the background

The Best Tomato Soup Recipe

If you love canned creamy tomato soup, you’ll be amazed by how easy it is to make the homemade version. All you’ll need are tomatoes, onions, chicken broth, milk, and seasonings to throw into the slow cooker and let it do all the cooking for you. It is an absolute staple recipe that’s perfect for lunch or dinner all year long. Pair it with grilled cheese, crackers, or Easy Cheddar Bay Biscuits.

Why You Will Love This Recipe


So creamy with tasty with the tomato and basil flavors.

Delicious with warm grilled cheese or toasty bread.

Popular with kids and adults alike.

close up of easy slow cooker tomato basil soup in a bowl with croutons, basil leaves, and a sprinkle of parmesan cheese

Ingredients

  • Tomatoes– Delicious, flavorful tomatoes are the main ingredient in this recipe. Look for whole peeled tomatoes that come in a large can.
  • White Granulated Sugar– A little sugar helps to cut some of the acidity in the tomatoes and brings out the savoriness in the soup.
  • Butter– A little bit of butter adds some richness in flavor but is optional.
  • Milk– Adding milk will make it much more creamy. You could substitute this for half and half or heavy whipping cream for a much thicker soup.
  • Fresh Basil
  • Chicken Broth
  • Onion

*See the recipe card at the bottom of the page for detailed instructions and a list of ingredients.

How to Make Slow Cooker Tomato Basil Soup

This soup is easy to make. All you have to do is:

  1. Add ingredients to the slow cooker: Add the tomatoes, onion, chicken broth, butter, basil, and sugar to the slow cooker and stir together.
  2. Cook: Allow the flavors to blend together and the onions to cook for around 3-4 hours on high or 6-8 hours on low.
  3. Blend: Once the onions have softened, puree together using an immersion blender or carefully pour into a regular blender and pulse a few times.
  4. Add milk: Stir in the milk slowly. Garnish with some croutons, crackers, or more fresh basil. Enjoy!

Storage Options

To refrigerate: store any leftovers in an air-tight container and refrigerate for up to 5 days.

To freeze: Freeze tomato soup in an air-tight container for up to 3 months.

Variation Ideas

This recipe is very easy to switch up to suit your taste. A few ideas to try:

  • Make it cheesy with some Parmesan or Cheddar.
  • Add a can of fire-roasted tomatoes for a smoky flavor.
  • Bulk it up with some veggies or meat.
  • Spice it up with garlic or Italian herbs.
  • For a thicker soup, use heavy cream instead of milk or add a can of tomato paste.
two bowls of Easy Slow Cooker Tomato Basil Soup with croutons, spoons, and basil leaves with a crock pot full of soup in the background

Frequently Asked Questions

Why do you add milk to tomato soup?

Milk helps to make the soup much more creamy and adds a rich flavor.

How can I thicken tomato soup?

To thicken the soup, replace the milk with heavy cream or half and half.

two bowls of easy slow cooker tomato basil soup in the background and a spoon with soup and a crouton in focus

Helpful Tips

* Add a pinch of baking soda right before adding the milk to help balance out the acidic flavor of the tomatoes.

* An immersion blender makes blending the soup very easy. But if you do not have one of those, carefully transfer the soup to a blender.

* Tomato soup tastes fantastic with grilled cheese, crackers, or garlic bread.

More Delicious Soup Recipes

Did you try this recipe? If so, please leave a ⭐ review below and tag me @whiskfulcooking on InstagramFacebookPinterest, and YouTube!

Easy Slow Cooker Tomato Basil Soup (with Canned Tomatoes) in a bowl with croutons and basil leaves with a crock pot in the background

Easy Slow Cooker Tomato Basil Soup (with Canned Tomatoes)

Braghan
This easy and flavorful Easy Slow Cooker Tomato Basil Soup with Canned Tomatoes is a classic recipe made with tomatoes, basil, and simple seasonings that come together quickly in the Crock Pot. Serve it with grilled cheese or crackers for a satisfying lunch or dinner.
4.80 from 5 votes
Prep Time 5 minutes
Cook Time 4 hours
Total Time 4 hours 5 minutes
Course Soup
Cuisine American
Servings 8
Calories 122 kcal

Ingredients
  

  • 56 ounces whole peeled tomatoes
  • 1 small onion diced
  • 2 1/2 cups chicken broth
  • 1/4 cup fresh basil chopped
  • 4 tablespoons butter
  • 2 teaspoons white granulated sugar
  • 1/2 cup milk

Instructions
 

  • Add tomatoes, onion, chicken broth, basil, butter, and sugar to a slow cooker.
  • Cook 3-4 hours on high or 6-8 hours on low.
  • Remove the lid and puree using an immersion blender or carefully pour into a regular blender and pulse until smooth. Stir in the milk. Garnish with croutons, cheese, or more fresh basil. Enjoy!

Notes

  • Leftovers can be stored in an air-tight container in the refrigerator for up to 5 days or in the freezer for up to 3 months.
  • If the soup tastes too acidic, add a pinch of baking soda before adding milk.
* Cook times and nutritional values are estimates due to variations in cookware and ingredient brands.

Nutrition

Serving: 8gCalories: 122kcalCarbohydrates: 9gProtein: 3.5gFat: 6.5gSaturated Fat: 4gCholesterol: 17mgSodium: 443mgPotassium: 90mgSugar: 2gCalcium: 36mg
Tried this recipe?Let us know how it was!
Nutrition Facts
Easy Slow Cooker Tomato Basil Soup (with Canned Tomatoes)
Serving Size
 
8 g
Amount per Serving
Calories
122
% Daily Value*
Fat
 
6.5
g
10
%
Saturated Fat
 
4
g
25
%
Cholesterol
 
17
mg
6
%
Sodium
 
443
mg
19
%
Potassium
 
90
mg
3
%
Carbohydrates
 
9
g
3
%
Sugar
 
2
g
2
%
Protein
 
3.5
g
7
%
Calcium
 
36
mg
4
%
* Percent Daily Values are based on a 2000 calorie diet.

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4.80 from 5 votes (5 ratings without comment)

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