Roast tomato soup without broth/stock

I am trying to make a vegetarian roast tomato and basil soup without using vegetable stock. A chef friend suggested making a mirepoix of vegetables, sweating them slowly, adding the roasted tomatoes and then water (instead of the stock).

My question is the amount of mirepoix I should use for 1kg tomatoes assuming my mirepoix is 2:1:1 onion, carrot and celery.

Thanks for any advice.

soup tomatoes

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Can you use milk instead of water for tomato soup?

Start by combining one can of tomato soup with a can full of milk, as you usually would. We're not using water here. I usually use 1% milk, but if you aren't calorie conscious and have it on hand, of course it would be even better with half and half or heavy cream.

How do you thicken tomato soup without paste?

Make a slurry. To make a slurry, mix a spoonful of cornstarch or tapioca starch with some of the excess liquid from the soup. Stir to combine the ingredients, and then add the mixture right into the soup. Bring the soup to a boil and watch it thicken almost immediately.

What can I add to tomato soup to make it better?

Add a can of diced tomatoes, a bit of cream, and torn fresh basil leaves. Swirl some red wine vinegar into the soup and serve with a stack of mozzarella and fresh basil leaves on a toasted baguette. Add a drizzle of pesto (homemade or store bought) and finish with toasted pine nuts and croutons.

Gordon Ramsay's Roasted Tomato Soup

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