Homemade Slow Cooker Tomato Soup is one of those comforting dishes that instantly warms the soul. With its luscious, velvety texture and rich, robust flavors, this homemade soup is a delightful antidote to chilly days and rainy afternoons. Imagine a bowl filled with a vibrant red broth, brimming with the natural sweetness of tomatoes and a hint of herbaceous seasoning. It’s the kind of meal that not only nourishes the body but also soothes the spirit, transforming any ordinary day into something special.

I still remember the first time I made this soup. I had just moved into my new apartment and was looking for a cozy meal that would not only fill my belly but also create a sense of home. That is when I stumbled upon this Homemade Slow Cooker Tomato Soup recipe. It quickly became a staple in my kitchen thanks to its simplicity and incredible taste. With minimal prep time and just a few ingredients, you can create a dish that rivals those from your favorite restaurant. So grab your slow cooker, because I can’t wait for you to try it!
Why You’ll Love This Recipe
- Simple & Quick: Just set it and forget it! This soup only takes about 10 minutes to prep.
- Irresistible Flavor: A delightful blend of sweet tomatoes and aromatic herbs.
- Eye-Catching Appeal: That vibrant red color will brighten up any table.
- Flexible Serving: Perfect for lunch, dinner, or even as a comforting snack.
- Diet-Friendly Options: Easily made gluten-free and can be dairy-free by skipping the cream.
Ingredients You’ll Need
- 2 (28 oz) cans whole peeled tomatoes, with juices: These form the hearty base of your soup. Look for quality brands for the best flavor.
- 2 tablespoons tomato paste: This concentrated form of tomato adds depth and richness. You can substitute with more crushed tomatoes if needed.
- 3 cups vegetable broth: Provides the liquid base. Use low-sodium broth to control salt levels.
- 1 teaspoon onion powder: Adds a subtle sweetness without the chunks of onion. Can be swapped with fresh onion if preferred.
- ½ teaspoon garlic powder: Enhances the flavor profile. Fresh garlic can be used, but use about one clove.
- 1 teaspoon salt: Brings out the soup’s natural flavors. Adjust according to your taste and the broth used.
- ½ teaspoon black pepper: For a gentle kick of heat.
- ½ teaspoon dried basil: Infuses Italian notes and enhances the tomato flavor.
- ½ teaspoon dried oregano: A complementary herb that balances the sweetness of the tomatoes.
- ½ cup heavy cream (added at the end): This gives the soup a luxurious creaminess. For a lighter option, use coconut milk or a non-dairy alternative.
- 1 tablespoon butter (added at the end): Adds richness. You can replace it with olive oil if keeping it dairy-free.
- 1 tablespoon tapioca flour or cornstarch + 1 tablespoon of water stirred into a slurry (added at the end): Helps thicken the soup. Cornstarch is a fantastic substitute if you don’t have tapioca flour.
- 1 tablespoon sugar (added at the end): This balances the acidity of the tomatoes. Adjust to taste.
How to Make Homemade Slow Cooker Tomato Soup
- Combine Ingredients: Add the 2 (28 oz) cans of whole peeled tomatoes (with juices), 2 tablespoons of tomato paste, 3 cups of vegetable broth, 1 teaspoon of onion powder, ½ teaspoon of garlic powder, 1 teaspoon of salt, ½ teaspoon of black pepper, ½ teaspoon of dried basil, and ½ teaspoon of dried oregano to the slow cooker.
- Break Up Tomatoes: Use a spoon to gently break up the tomatoes, allowing their juices to blend with the other ingredients.
- Cook: Cover and cook on low for 6-7 hours or on high for 3-4 hours. The longer, the better, as the flavors meld beautifully.
- Blend: Once cooked, blend the soup until completely smooth using an immersion blender or regular blender. For a chunkier texture, blend only part of the soup.
- Finish with Cream and Butter: Stir in ½ cup of heavy cream, 1 tablespoon of butter, the slurry made from 1 tablespoon of tapioca flour or cornstarch mixed with 1 tablespoon of water, and 1 tablespoon of sugar until melted and well incorporated.
- Taste and Adjust: Always taste your soup before serving. If it’s overly acidic, add a bit more sugar to balance the flavors.
Storing & Reheating
Store leftover soup in an airtight container in the refrigerator for up to 4 days. For longer storage, you can freeze the soup for up to 3 months. Be sure to let it cool completely before placing it in freezer-safe containers. To reheat, warm the soup on the stovetop over medium heat or in the microwave until heated through. If the texture seems a bit different after freezing, simply stir in a splash of cream or broth to refresh it.
Chef’s Helpful Tips
- Be mindful of the size of your tomato chunks when blending; smaller pieces will blend easier and faster.
- For a smokier flavor, consider roasting the tomatoes before adding them to the slow cooker.
- If you desire a deeper flavor, sauté the garlic powder and onion powder in the butter before adding it to the soup.
- Keep an eye on your seasonings; sometimes, a little more basil or oregano can go a long way.
Homemade Slow Cooker Tomato Soup is a fantastic dish to keep in your repertoire. Not only is it affordable, but it also provides comfort and satisfaction with each warm spoonful. Don’t hesitate to get creative. Add some fresh basil leaves as a garnish, a drizzle of balsamic glaze, or even chili flakes if you like a bit of heat.

Recipe FAQs
Can I make Homemade Slow Cooker Tomato Soup vegan?
Absolutely! Simply substitute the heavy cream with a dairy-free alternative, such as coconut cream, and omit the butter to keep it plant-based.
How can I thicken the soup?
If you prefer a thicker soup, ensure you use the slurry of tapioca flour or cornstarch. You can also let it simmer uncovered for a while after blending to reduce the liquid.
Can I add other vegetables?
Definitely! Feel free to toss in bell peppers, carrots, or even zucchini for added nutrition and flavor. Just chop them finely to ensure they cook through.
What can I serve with this soup?
A crusty baguette, grilled cheese, or even a simple salad makes excellent accompaniments for this delicious Homemade Slow Cooker Tomato Soup. Enjoy dipping for that ultimate comfort experience!
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Homemade Slow Cooker Tomato Soup
This Homemade Slow Cooker Tomato Soup is rich and comforting, featuring canned tomatoes, creamy goodness, and aromatic herbs. Perfect for a simple dinner, it’s easy to prepare and bursting with flavor!
- Total Time: 0 hours
- Yield: 6 servings 1x
Ingredients
- 2 28 oz cans whole peeled tomatoes, with juices
- 2 tablespoons tomato paste
- 3 cups vegetable broth
- 1 teaspoon onion powder
- ½ teaspoon garlic powder
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon dried basil
- ½ teaspoon dried oregano
- ½ cup heavy cream added at the end
- 1 tablespoon butter added at the end
- 1 tablespoon tapioca flour or cornstarch + 1 tablespoon of water stirred into a slurry added at the end
- 1 tablespoon sugar added at the end
Instructions
- Add tomatoes, tomato paste, vegetable broth, onion powder, garlic powder, salt, pepper, basil, and oregano to the slow cooker.
- Use a spoon to gently break up the tomatoes.
- Cover and cook on low for 6-7 hours or high for 3-4 hours.
- Blend the soup until completely smooth using an immersion blender or a regular blender.
- Stir in heavy cream, butter, slurry, and sugar until melted and well incorporated.
- Taste and adjust seasoning, adding more sugar if the soup is overly acidic.
Notes
For a lighter version, reduce the amount of heavy cream.
Feel free to add fresh herbs at the end for an extra flavor boost.
This soup pairs beautifully with grilled cheese sandwiches.
- Prep Time: 20 minutes
- Cook Time: 6-7 hours
- Category: Soups
- Method: Slow Cooker
- Cuisine: American
Nutrition
- Serving Size: 1 cup
- Calories: 220
- Sugar: 5g
- Sodium: 800mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 4g
- Protein: 5g
- Cholesterol: 40mg






