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Cream of Tomato Soup

"Old fashioned easy to make creamy tomato soup that will warm your heart."

By allrecipes · From Open Recipes · 6 ingredients
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Illustration of Cream of Tomato SoupIllustration

Why it works: Onion and tomato match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and 20,622 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

The recipe

6 - 1 cup servings
Prep5 min
Cook20 min

Ingredients

Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.

  1. Melt the butter in a large saucepan over medium heat.

  2. Add the chopped onion and cook, stirring often, until soft and translucent, about 5 minutes.

  3. Sprinkle the flour over the onion and stir constantly for 1 minute to cook off the raw taste.

  4. Slowly whisk in the tomato juice, scraping up any bits from the bottom of the pan.

  5. Bring to a gentle simmer over medium heat, stirring, and cook for 10 minutes until slightly thickened.

  6. Reduce the heat to low, then stir in the milk and warm through for 2 to 3 minutes without letting it boil.

  7. Season with salt to taste and serve hot.

By allrecipes. Recipe from Open Recipes.

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Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Onion + tomatotop 4% of all pairs
    Aroma overlapstrong
    Mentioned together20,622 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Butter + milktop 3% of all pairs
    Aroma overlapstrong
    Mentioned together81,222 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Butter + flourtop 6% of all pairs
    Aroma overlaplow
    Mentioned together122,858 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Tomato + milktop 7% of all pairs
    Aroma overlapstrong
    Mentioned together2,223 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Butter + oniontop 7% of all pairs
    Aroma overlapmoderate
    Mentioned together42,827 recipes

    Shared aroma: guaiacol (smoky, sweet).

Butter and flour share little aroma chemistry, yet 122,858 recipes mention both: they likely work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Flavor stand-ins for the onion

How well each one fits the dish's main ingredients (butter, flour, tomato, milk):

  1. Potatobetter flavor fit
  2. Capsicumbetter flavor fit
  3. Asparagusabout as good a flavor fit
  4. Onionthe original

Fit is the average pairing score against butter, flour, tomato, milk. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).