his easy low carb tomato soup recipe is bursting with roasted tomatoes & fresh basil. Who knew keto roasted tomato soup could be so delicious? There's a paleo option, too.
We went for a walk around the lake as a family this past weekend to enjoy what I thought might be the last warm(ish) day of the year. Needless to say for anyone that has young children, we didn’t get very far. After a stop at the playground and a toddler refusing to sit in the stroller, it was time to head back pretty quickly.
By the time we returned to the car, we were all freezing cold. All I could think about was a warm bowl of keto tomato soup, but we grabbed some food nearby instead (because, screaming child!).
And since that moment, I have not been able to get low carb tomato soup out of my head. With roasted tomatoes and fresh basil, obviously.
HOW TO MAKE ROASTED TOMATO SOUP LOW CARB & KETO
My love for roasted tomato basil soup goes back almost a decade. It all started at this cute little local Italian restaurant we have in the Twin Cities. My husband and I have been getting roasted tomato soup there for years, since we first started dating.
The soup is rich and incredibly thick. Although I have no idea exactly what they put into their roasted tomato soup recipe, I’m certain from the flavor that it definitely involves roasted tomatoes.
My roasted low carb tomato soup version is almost like that – warming, a little creamy, and bursting with the flavors of roasted tomatoes and fresh basil.
There’s just one problem: most of the super thick tomato soup recipes are relatively high in carbs. That might seem surprising, but the natural sugar in tomatoes can add up if they are concentrated.
And, some roasted tomato soup recipes even use flour as a thickener. No, thanks!
So, how to make roasted tomato soup low carb? It’s actually pretty simple. You thin it out with something delicious, like a good broth or some cream – or in the case of this keto tomato soup recipe, use both!
My first attempt at this recipe, published in 2016, was actually much thicker. It looked like this:
nfortunately, I had to make the serving size very small to make the carb count reasonable for low carb and keto lifestyles. So, the roasted tomato soup recipe was updated in 2018 to increase the broth and make a reasonable serving size.
If carbs are not a factor, you can definitely increase the amount of tomatoes and decrease the broth, which will make a much thicker soup.
OPTIONS & SHORTCUTS FOR KETO TOMATO SOUP
This low carb tomato soup recipe is pretty basic. There aren’t too many ingredients, but the ones it does have are bursting with flavor. Truly.
That being said, there are a few steps involved – roasting the tomatoes, pureeing them, mixing them with the broth and herbs to make the soup, and finally adding the cream and basil. None of these are difficult, but sometimes you might want to save time.
HOW TO MAKE ROASTED TOMATO SOUP FAST
So, what can you do if you really, really want keto tomato soup but don’t have a lot of time? Substitute the fresh tomatoes with a can of roasted tomatoes. Can sizes vary, but you’ll need about 4 cups of either fresh or roasted, either way.
If you want to substitute, simply skip to step 3 and continue with the recipe.
Just know that the flavor of roasting the tomatoes yourself is unmatched. I encourage you to try it when you have the time!
And, most of it is hands-off time, so you can totally do it while doing other things around the house. Here’s a shot of what the roasted tomatoes look like when they are done:
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