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Parsnip Soup

A soup made from parsnips simmered in stock, finished with cream, pepper, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Parsnip and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 1,109 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Parsnip Soup

Ingredients

Directions

Make the soup

  1. Slice the parsnips and add them to boiling stock.

  2. Simmer for one hour or until tender.

  3. Rub the soup through a wire sieve.

Finish and serve

  1. Add cream, pepper, and salt to taste.

  2. Heat in a clean stewpan until boiling.

  3. Serve with fried croutons made from bread soaked in water.

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

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

  2. Cream + peppertop 23% of all pairs
    Smell alikelow
    Cooked together21,449 recipes

    Shared aroma: acetic acid (sour, vinegar).

  3. Cream + parsniptop 25% of all pairs
    Smell alikemoderate
    Cooked together325 recipes

    Shared aroma: octanal (fat, soap).

Cream and pepper barely smell alike, yet cooks put them together in 21,449 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

Parsnips
Provide the main body and flavour, and thicken the soup as they break down when cooked.
Stock
Forms the liquid base that carries the parsnip flavour and cooks the vegetables until tender.
Cream
Adds richness and a smooth, silky mouthfeel to the finished soup.

The step that matters

Simmer until tender. Parsnips must be fully soft before sieving; undercooked pieces stay firm and grainy, and the soup will not purée smoothly.

Swap the parsnip

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

  1. Spinachfits better
  2. Capsicumfits better
  3. Potatofits better
  4. Parsnipthe original

Fit is the average pairing score against cream, 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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