Roasted Tomato Soup Recipe

Do you want to know the "secret" behind making a great soup? Alright, as you probably guessed from the quotation marks we used on the word "secret" there, it's really not so mysterious or secretive after all: to make a great soup, just use great ingredients and keep it as simple as you can so those ingredients can shine. In the case of this roasted tomato soup recipe from Catherine Brookes, the recipe developer behind Blue Sky Eating, those ingredients involved roasted tomatoes, basil, and heavy cream, so you know you're going to have a treat on your hands.

"This is such a great one to enjoy as the cooler weather starts to come in," Brookes says. It's also ideal to seek out fresh tomatoes in early autumn when the last bountiful harvests are ready. Another thing you'll love about this soup is the fact that it requires only about 10 minutes of hands-on work, yet its great taste will be remembered all season long.

Gather your ingredients for roasted tomato soup

To make this rich, comforting soup, you'll need plenty of baby plum tomatoes, a couple of large onions, quartered, some whole garlic cloves, olive oil, salt and pepper to taste, vegetable stock, heavy cream, and a generous amount of fresh basil. And that's it! As you likely surmised, that roasting really brings out the deliciousness here. And the heavy cream. Also Brookes notes: "I'd say the addition of fresh basil gives it that extra kick of flavor that goes so well with the tomatoes and garlic."

Prepare the veggies for roasting

To start things off, preheat that oven to 400 F. Then separate out the garlic cloves (note: don't peel them), quarter the onions, and evenly spread the garlic, onions, and tomatoes out in a baking pan. (Don't bother lining the pan with parchment paper, it's still going to require some cleaning, FYI, and you want the juices.) Next, drizzle olive oil over these veggies, then sprinkle on salt and pepper, adding as much as you'd like based on your preference.

"This is a pretty straightforward [recipe],"Brookes says, but she adds, "Just make sure to leave the skin on the garlic while it roasts otherwise it may burn. Then once you're ready to blend everything simply peel it off and you'll have delicious soft roasted garlic that will add so much flavor to the soup!"

Roast the veggies, then prep for blending

Roast the tomatoes, garlic, and onions for 40 minutes at 400 F, then retrieve the pan from the oven. Let everything cool a bit, just 5 minutes or so, then peel the garlic and discard the papery "skin." Now we'll blend everything together and finish this soup.

Blend the soup, then garnish and serve

Now it's time to add all of the ingredients (save a few extra basil leaves and a drizzle of cream) to the blender, so that's the roasted veggies, the vegetable stock, the heavy cream, and the basil going in there. Close the blender up, secure the top (and maybe hold it down with a dish towel, too), and then blend away, running the device until the soup is completely smooth.

Then serve out portions into bowls. "Serve it with an extra drizzle of cream and some basil leaves," says Brookes, explaining that this step is optional, but it's very well advised! Got extra? She adds: "It should keep well covered in the fridge up to 4 days and can also be frozen."

Roasted Tomato Soup Recipe
5 from 40 ratings
This roasted tomato soup is warm and comforting, and it only takes a handful of ingredients to make.
Prep Time
Cook Time
tomato soup on spoon
Total time: 50 minutes
  • 1 ½ pounds baby plum tomatoes
  • 2 large onions, quartered
  • 6 whole garlic cloves
  • 2 tablespoons olive oil
  • salt, to taste
  • pepper, to taste
  • 2 cups vegetable stock
  • ½ cup heavy cream, plus more for garnish
  • ½ cup fresh basil, plus more for garnish
  1. Preheat the oven to 400 F.
  2. Place the tomatoes, onions, and whole garlic cloves on a large roasting tray. Drizzle with the olive oil and add sprinkle with salt and pepper to taste.
  3. Toss to coat and bake for 40 minutes.
  4. Allow the vegetables to cool slightly before peeling away the skin from the garlic cloves and adding everything to a large blender along with the vegetable stock, heavy cream, and basil.
  5. Blitz until completely smooth, and add some extra seasoning to taste if desired.
  6. Serve, optionally with extra cream and basil leaves as garnish.
Calories per Serving 156
Total Fat 12.2 g
Saturated Fat 5.3 g
Trans Fat 0.0 g
Cholesterol 27.2 mg
Total Carbohydrates 11.3 g
Dietary Fiber 2.5 g
Total Sugars 5.7 g
Sodium 626.0 mg
Protein 2.3 g
The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.
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