Skip to main content
Main

Tomato Soup

A tomato soup thickened with flour and seasoned with salt, pepper, sugar, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
Jump to recipe ↓
Tomato Soup

Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Tomato Soup

Ingredients

Directions

Make the soup

  1. Cook the tomatoes until soft, then pass them through a sieve.

  2. Add the tomato puree to the soup stock.

  3. In a separate bowl, mix the flour with cold water to create a smooth paste, then stir it into the soup to thicken.

  4. Season with salt, pepper, and sugar to taste.

Finish and serve

  1. Add a little butter just before serving.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Photo for illustrative purposes only · Contact us to use it

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Tomato + peppertop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

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

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Tomatoes
Provide the main flavour and body of the soup once cooked and sieved.
Flour
Thickens the soup when mixed smooth with cold water before stirring in.
Butter
Adds richness and a silky mouthfeel when stirred in just before serving.

The step that matters

Mixing the flour with cold water. Flour added directly to hot liquid clumps, because its starch surface gets wet unevenly. Mixing it into a smooth paste with cold water first lets the starch disperse evenly, so the soup thickens smoothly.

Swap the tomato

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

  1. Capsicumfits better
  2. Arrowrootfits better
  3. Shallotfits better
  4. Tomatothe original

Fit is the average pairing score against flour, pepper, sugar, butter. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

More tomato soup recipes

Cream 27Clear 14Creamed 10Creamy 8French 8with Rice 8 See all 632 →

You might also like

Tomato BisqueTomato Bisque61 recipesTomato FrittersTomato Fritters23 recipesTomato PureeTomato Puree23 recipesMacaroni with Tomato SauceMacaroni with Tomato Sauce16 recipes