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Tomato Soup

A simple tomato soup made with water, tomatoes, crackers, butter, milk, salt, and pepper.

From an old cookbook · modernised transcription
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Tomato Soup

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Tomato Soup

Ingredients

Directions

Make the soup

  1. In a large pot, bring the water to a boil.

  2. Add the peeled tomatoes and broken crackers.

Season and finish

  1. Season with salt, pepper, and butter.

  2. Stir in the milk and simmer for 10 to 15 minutes.

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

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

  3. Tomato + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together2,226 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

  4. Pepper + buttertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  5. Tomato + buttertop 22% of all pairs
    Smell alikemoderate
    Cooked together6,918 recipes

    Shared aroma: 3-hexenal (apple, fruity).

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

What each ingredient does

Tomatoes
Provide the main body, moisture, and bright acidity of the soup.
Crackers
Absorb liquid and swell, thickening the soup and giving it body.
Butter
Adds fat for a richer mouthfeel and rounder flavor.
Milk
Adds creaminess and softens the sharp tomato flavor.

The step that matters

Simmer the milk gently. Tomatoes are acidic, and milk proteins can curdle when hot acidic liquid boils hard. Stirring in the milk and keeping the soup at a gentle simmer helps it stay smooth.

Swap the tomato

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

  1. Potatofits better
  2. Capsicumfits better
  3. Tomatothe original
  4. Asparagusfits about as well

Fit is the average pairing score against pepper, butter, milk. 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.

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