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Chestnut Soup

A soup made with chestnuts, butter, flour, water, and parsley.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Chestnut Soup

Why it works: Chestnut and flour match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 517 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Chestnut Soup

Ingredients

Directions

Prepare the chestnuts

  1. Place chestnuts (unpeeled) in cold water and boil for 1 hour. Remove shells.

  2. Place nuts in an enamelled saucepan with butter. Fry for 10 minutes.

Make the soup

  1. Gradually add flour while stirring continuously. Add water. Cook gently for 30 minutes.

  2. Add parsley. Bring to a boil. Serve.

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. Chestnut + flourtop 6% of all pairs
    Smell alikestrong
    Cooked together517 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Chestnut + parsleytop 7% of all pairs
    Smell alikestrong
    Cooked together313 recipes

    Shared aroma: coumarin (sweet, hay).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Parsley + flourtop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + parsleytop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

Butter and flour 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

Chestnuts
Provide the main bulk and creamy, starchy body of the soup.
Butter
Adds richness and fat, and frying the nuts in it builds a toasty flavour.
Wholemeal flour
Starch thickens the soup as it heats with the liquid.

The step that matters

Gradually add flour while stirring continuously. Flour clumps when it meets hot liquid unless it is spread evenly first. Adding it slowly while stirring disperses the starch so the soup thickens smoothly without lumps.

Swap the parsley

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

  1. Capersfits better
  2. Nutmegfits better
  3. Cinnamonfits better
  4. Parsleythe original

Fit is the average pairing score against chestnut, butter, flour. 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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