Did you know that you can make an incredible tomato soup in the slow cooker? Just dump all the ingredients into the slow cooker and cook low and slow and then blend. Rich and smooth, Slow Cooker Tomato Soup is the ultimate healthy comfort food.
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About Slow Cooker Tomato Soup
You just can't beat soup for warming comfort food and tomato soup is always a favourite in our family. Although we love our Easy Tomato Soup, Air Fryer Tomato Soup and Tomato and Basil Soup recipes, this slow cooker tomato soup is the easiest soup to make.
No pre-cooking needed, you just dump everything into the slow cooker and leave it for 3 hours. The ultimate lazy homemade soup recipe.
A thick, creamy and velvety smooth soup that is bursting with tomato flavour. Put this on in the morning, head out for a walk and come home to soup all ready to be blended and served with crusty warm bread. The best part is, unlike store bought soup, there are no additives.
Looking for more homemade soup recipes? Why not try our super High Protein Tomato Soup, nutritious Kale Soup, creamy Vegetable Soup or our delicious Carrot and Lentil Soup.
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Ingredients and Substitutions
A full ingredients list, along with US Customary and Metric measurements, can be found in the recipe card at the end of this post.
- Tomatoes - Yes, we "cheated" and used canned tomatoes. We love making this all throughout winter when fresh tomatoes aren't their best, so we used canned. Try to choose the best quality ones you can, as the cheaper ones tend to be a bit watery. You can use fresh tomatoes though.
- Onion, carrot, celery & sweet potato - This is the base of any good soup. You could use white potato, but we love the creaminess that sweet potato gives. You could also add some butternut squash.
- Garlic - You can save some time and use frozen crushed garlic.
- Tomato puree - If you are using fresh tomatoes in winter to make this slow cooker tomato soup then add a little more tomato puree to boost the tomato flavour.
- Stock - A good quality vegetable stock pot.
- Seasoning - Generously season with salt and pepper.
- Creme fraiche - A little added before serving slow cooker tomato soup adds a lovely creaminess.
Variations
If you wanted to add more flavour, then why not try roasting the tomatoes first? If you wanted to use fresh tomatoes and they are out of season, then we would recommend roasting them first.
Put them into a preheated oven at 180°C/160°C(fan)/375°F/Gas 4 with some olive oil for 40 minutes.
We love the combination of red pepper and tomato in a soup, so why not add some roasted red peppers along with all the other ingredients?
If you wanted to make this really creamy, then once you have blended the slow cooker tomato soup, stir some cream into it. A little goes a long way, so it doesn't have to be super indulgent.
How to Make Slow Cooker Tomato Soup
- One: Put all of the ingredients (except the creme fraiche) into your slow cooker.
- Two: Give everything a good mix.
- Three: Cook on high for 3 hours of low for 6 hours.
- Four: Use an immersion blender to blend to your desired consistency. Stir in the creme fraiche and serve.
Serving Suggestions
Soup and bread is such a classic combination. But why not take the humble slice of bread and butter up a gear and make your own crunchy croutons? Not just any croutons, but cheesy, herby croutons. They are so easy to make, and a great way to use up bread that is going a little stale.
Just take a couple of slices of bread and cut into 1 inch cubes and scatter on a baking tray. Drizzle with olive oil and sprinkle with Parmesan (or grated cheddar) and sprinkle with dried oregano.
Put them into a preheated oven at 180°C/160°(fan)/350°F/Gas 4 for around 8 minutes.
Why not try our Air Fryer Croutons or Sourdough Croutons. A couple of slices of buttered crusty bread go down well too.
We love this with our Slow Cooker Bread. But, why not do something a little different and serve with some some warm pita bread or even our Easy Homemade Flatbreads? You could also try our Garlic and Rosemary Focaccia.
You also can't beat a grilled cheese sandwich with tomato soup. Why not try our Air Fryer Cheese Toastie recipe?
Storage
Store: You can store any leftovers in an air tight container and it will keep for up to 3 days. Just make sure it has completely cooled before it goes in the fridge.
Freeze: Once it is fully cooled, you can transfer it to freezer bags and then it can lay flat in the freezer for easier storage.
Defrost: You can defrost at room temperature and it will take a few hours.
Reheat: Reheat it on the hob until it is fully heated all the way through.
Dannii's Top Tips
- Make sure all the vegetables are cut to the same size, so that they cook at the same rate.
- You could add a pinch of sugar to balance out the bitterness of the tomatoes.
- We blend our tomato soup in the slow cooker until it is smooth. However, you could just pulse it a little bit with the stick blender and leave some chunks in it.
- If you want to add a kick of heat to this, then add some red chilli flaked either whilst cooking or sprinkled on top before serving.
- To really enhance all the flavours, stir in some butter or olive oil once it is blended.
- You can also add some extra flavour with some sun-dried tomato paste.
- Why not add some dried herbs for extra flavour too?
- We use an immersion (stick) blender, as it is easier to use and clean. You can transfer it to a jug blender, but we don't recommend putting hot liquid in a jug blender.
Frequently Asked Questions
Yes, the soup itself if vegan, just leave out the creme fraiche when serving, or use a vegan alternative.
To make sure this slow cooker soup is gluten free, then use a gluten free stock cube and make sure there is no cross contamination.
There really is no rule here. We use a Morphy Richards Slow Cooker and we love it. What I love most about it is that you can put the bowl insert on the hob too.
If you want to serve leftovers a different way, then you can use leftover slow cooker tomato soup as a pasta sauce.
More Tomato Recipes
If you've tried this slow cooker tomato soup, let us know how you got on in the comments below.
Tag us in your creations on Instagram @hungryhealthyhappy - Use the hashtag #hungryhealthyhappy too.
Recipe
Slow Cooker Tomato Soup
Ingredients
- 800 g (1.75 lb) of Chopped tomatoes - canned
- 1 Sweet potato - peeled and diced
- 2 Carrots - peeled and diced
- 2 ribs of Celery - diced
- 1 Onion - diced
- 400 ml (1.75 cups) of Vegetable stock
- 2 Garlic cloves - crushed
- 3 tablespoon of Tomato puree
- 2 tablespoon of Dried oregano
- 1 pinch of Sea salt
- 1 pinch of Ground black pepper
- 3 tablespoon of Crème fraîche
Instructions
- Put all of the ingredients (except the creme fraiche) into your slow cooker.
- Give everything a good mix.
- Cook on high for 3 hours of low for 6 hours.
- Use an immersion blender to blend to your desired consistency.
- Stir in the creme fraiche and serve.
Recipe Tips
- Make sure all the vegetables are cut to the same size, so that they cook at the same rate.
- You could add a pinch of sugar to balance out the bitterness of the tomatoes.
- We blend our tomato soup in the slow cooker until it is smooth. However, you could just pulse it a little bit with the stick blender and leave some chunks in it.
- If you want to add a kick of heat to this, then add some red chilli flaked either whilst cooking or sprinkled on top before serving.
- To really enhance all the flavours, stir in some butter or olive oil once it is blended.
- You can also add some extra flavour with some sun-dried tomato paste.
- Why not add some dried herbs for extra flavour too?
- We use an immersion (stick) blender, as it is easier to use and clean. You can transfer it to a jug blender, but we don't recommend putting hot liquid in a jug blender.
Nutritional Information
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The nutritional information provided is approximate and is calculated using online tools. Information can vary depending on various factors, but we have endeavoured to be as accurate as possible.
As all appliances vary, cooking times are a guide. Please note that by changing the serving size, the cooking time may also need to be altered.
Neha says
Dump and cook are my most favorite recipes for soups! I can only imagine how great its flavors would be. Can't wait to try this one out!
Lauren says
This was the easiest tomato soup recipe I've made yet! And it tasted great with grilled cheese sandwiches - yum!!
Shelby says
Love this easy-to-make tomato soup. Served it with grilled cheese and it was the perfect kid-friendly lunch!
Julia says
This soup was amazing! We served it with grilled sandwiches
Holly says
Great recipe! I loved how easy it was to throw everything together and come home to a delicious meal. Tomato soup is one of our favorites. This is definitely a keeper.