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Tomato Soup

A tomato soup made with boiled tomatoes, butter, milk, and crackers.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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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. Boil the tomatoes slowly for 30 minutes.

  2. Strain the tomatoes.

  3. Season with salt, pepper, and butter.

  4. Stir in the boiling milk continuously.

  5. Add the rolled or grated crackers.

Serve

  1. Serve immediately.

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

Ripe tomatoes
Provide the main body and acidic, sweet flavor of the soup.
Boiling milk
Adds creaminess and mellows the tomato acidity into a smooth soup.
Butter
Adds richness and a rounded, fatty mouthfeel to the soup.
Crackers
Thicken the soup as their starch absorbs liquid and softens.

The step that matters

Stir in the boiling milk continuously. Adding hot milk to acidic tomatoes can cause it to curdle or separate. Constant stirring disperses the milk quickly so proteins do not clump in one spot.

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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