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Soup

Parsnip Soup

A soup made from boiled parsnip, flour, milk, and seasonings, served with fried bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Parsnip and flour match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 669 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Parsnip Soup

1 quart

Ingredients

Directions

Make the soup

  1. Boil the parsnip pieces in water until tender.

  2. Rub the cooked parsnip through a sieve and return it to the boiling water.

  3. Add enough water to make a total of 1 quart.

  4. Mix the flour with the milk and stir it into the boiling parsnip mixture.

  5. Season with salt, pepper, and sugar.

Serve

  1. Serve with fried bread.

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.

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. Parsnip + flourtop 7% of all pairs
    Smell alikestrong
    Cooked together669 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Parsnip + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together1,109 recipes

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

  3. Milk + breadtop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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

Parsnip
Provides the main flavour and body of the soup once cooked and sieved.
Flour
Thickens the milk and soup as it heats, giving a smoother, heavier texture.
Milk
Adds richness and creaminess, softening the soup's flavour.

The step that matters

Stir the flour and milk into the boiling soup. Flour mixed with milk before adding helps prevent lumps. Stirring it into boiling liquid lets the starch swell and thicken the soup evenly.

Swap the parsnip

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

  1. Capsicumfits better
  2. Arrowrootfits better
  3. Sweet potatofits about as well
  4. Parsnipthe original

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