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Tomato Soup

A tomato soup made with canned tomatoes, milk, flour, butter, pepper, and sea salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Tomato Soup

Why it works: Milk and butter 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

Prepare the tomatoes

  1. Stew the tomatoes for 15 minutes.

  2. Pass the tomatoes through a sieve to remove seeds.

Make the soup

  1. Reserve ½ pint of milk to blend with the flour.

  2. Boil the remaining milk, then add it to the tomatoes.

  3. Stir in the flour mixture and boil for 1 minute.

Serve

  1. Serve with dry toast.

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

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 body, acidity and flavour of the soup.
Milk
Adds creaminess and a smooth, mellow body to the tomatoes.
Flour
Thickens the soup as its starch swells and sets when heated.
Butter
Adds richness and fat, giving a rounder flavour and mouthfeel.

The step that matters

Blending the flour with milk. Flour dropped into hot liquid clumps, because the outer starch swells before the inside is wet. Blending it smooth with the reserved milk first lets the starch disperse evenly, so it thickens the soup without lumps.

Swap the tomato

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

  1. Potatofits better
  2. Capsicumfits better
  3. Chivefits better
  4. Tomatothe original

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