Slow Cooker Roasted Tomato and Basil Soup

A lovely version of Slow Cooker Roasted Tomato and Basil Soup, prepared for maximum flavour.

Originally published on my sister page JUST A MUM’S KITCHEN 

We are at that time of year where we have more tomatoes in the garden than we can possibly eat so I thought I would share a lovely recipe for you to try. 

I love making soups in my slow cooker, so I wanted to show you a lovely way to make a tomato one. The key for me is to maximise the flavours from the vegetables, but make it easy too. 

What I have done here is initially roasted the vegetables to give them more depth of flavour, then popped them in the slow cooker to finish cooking with the other ingredients. This provides a much richer result I think. 

I have combined the tomatoes with basil as I think they work together so well, if you prefer you could leave this out or replace it with another complementary flavour. 

The ingredients are lovely and simple

For the full recipe please scroll down further to see the recipe card with quantities and method

• Tomatoes

• Red Capsicum

• Onion

• Garlic

• Olive Oil

• Balsamic Vinegar

• Salt & Pepper

• Oregano

• Dried Thyme or Basil

• Sugar

• Tomato Paste

• Vegetable Stock (or chicken if you prefer) 

• Fresh Basil

The method for this one is lovely and simple, a few steps and tools will make this much easier to make. You will want a large roasting dish, a slow cooker and either a immersion stick blender or a blender that can handle hot ingredients. 

Firstly you want to prepare the vegetables. For my tomatoes I like to quarter them then very roughly remove the seeds, you don’t need to be too fussy and get every last one but it is easy enough to use your knife to scoop them out once quartered. 

Then I dice the onion into chunks, leave the garlic peeled but whole and deseed the capsicum, slice and pop all of these vegetables into a large roasting dish.

Drizzle over this the olive oil and the balsamic vinegar and stir to coat then pop it in a hot preheated oven to roast for 30 minutes while you prepare the rest of the ingredients.

You want to use a large roasting dish so that they roast rather than cook in their own juices. If this does happen that is ok, you can simply pour off some of the juices before the next step. 

Then it is just a matter of putting the roasted vegetables into the slow cooker and adding the remainder of the ingredients. I tend to use vegetable stock, but if you only have chicken stock on hand that is ok too. I add half the fresh basil at this stage then the remainder at the end. 

Then slow cook on high or low until ready. Then I add this to my blender or stick blender if using and blend until it is creamy and smooth. You can then add a little more basil and some salt if needed to taste and blend again. 

If you wish this is lovely with a little cream stirred through at the end to make it even more creamy, but that is personal preference so feel free to taste as you go once blended. 

Serve warm or this keeps beautifully in the fridge for another day or you can freeze it (without cream) for another day. 

I hope you love this recipe for Slow Cooker Roasted Tomato & Basil Soup, I have loads of other lovely slow cooker soup recipes, be sure to check them out Here

Onto my recipe for Slow Cooker Tomato & Basil Soup

Continue to Content

Slow Cooker Tomato and Basil Soup

Yield: 4 Cups

Prep Time: 20 minutes

Cook Time: 3 hours

Additional Time: 30 minutes

Total Time: 3 hours 50 minutes

Delicious Slow Cooker Roasted Tomato and Basil Soup, packed with flavour.

Print

Ingredients

• 1.2 Kilograms Tomatoes, quartered, seeds roughly removed
• 1 Red Capsicum, deseeded, sliced roughly
• 1/2 Onion, sliced roughly
• 6 cloves Garlic, peeled, whole
• 1/4 Cup Olive Oil
• 2 Tablespoons Balsamic Vinegar
• 1 teaspoon Salt
• 1/2 teaspoon Pepper
• 1 teaspoon Oregano, dried
• 1 teaspoon Thyme or Basil, dried
• 1 Tablespoon Tomato Paste
• 1 Tablespoon White Sugar
• 2 Cups Vegetable Stock (chicken ok too)
• 20-25 leaves Fresh Basil

Optional

• 1/4 Cup Cream

Instructions

1. Preheat your oven to 220C Bake
2. Quarter your tomatoes and roughly remove most of the seeds from each quarter and add to a large roasting dish
3. Deseed the red capsicum and slice, add to the roasting dish
4. Slice the half onion into large pieces and peel the garlic and pop both in the roasting dish
5. Combine the olive oil and balsamic vinegar and pour over the vegetables, stir to coat
6. Place in the hot oven for 30 minutes until it begins to caramalise, if a lot of liquid forms you can pour some of this off before using for next step.
7. Remove and place the vegetables into the slow cooker
8. Add to this the salt and pepper, oregano, thyme or dried basil, tomato paste, sugar, vegetable stock and half of the fresh basil
9. Stir well to combine.
10. Place the lid on the slow cooker and cook on HIGH for 3 hours or LOW for 6 hours
11. Once all of the ingredients are cooked carefully add to a blender that can have hot ingredients, or use a stick immersion blender and blend until completely smooth.
12. Taste, then add to this the basil and extra little bit of salt to your taste and blend again until smooth
13. If you prefer a a creamier finish and are eating straight away add the 1/4 cup of cream to the blender and blend again
14. Serve warm with a lovely loaf of bread, or allow to cool and pop in the refrigerator for another day, or can be frozen for up to 3 months.
15. Enjoy!

Notes

What sort of tomatoes is best?

Any large tomato variety is fine, even cherry tomatoes will do but will not have the full flavour of the larger varieties. You need them to be ripe and red to be used.

Do I have to use balsamic vinegar?

No, not at all, it just adds extra flavour

Can I freeze or refrigerate tomato soup?

Yes you can, once cool, add to a suitable container or portions to a zip lock bag and refrigerate for up to 4 days or freeze for up to 3 months. Be sure to thaw and reheat slowly until piping hot but not boiling. Do not add cream if using until you are ready to eat.

Thank you so much for stopping by to check out my latest recipes on my blog. If you are not already be sure to follow me on Facebook or Instagram for more deliciousness, and you can register your email in the subscription box below to receive all my recipes as I publish them.

Happy Cooking! 

Anna

Pin It! Pinterest