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Italian Chestnut Soup

A soup of onions, carrot, leeks, celery, butter, stock, chestnuts, and liquor.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Carrot and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,173 recipes. Both carry myristicin, which smells spice, warm. The science ↓

Italian Chestnut Soup

Ingredients

Directions

Prepare the vegetables

  1. Mince the onions, carrot, leeks, and celery.

  2. Fry the vegetables in butter until browned, then season with salt.

  3. Stew the mixture in stock for one hour.

Prepare the chestnuts

  1. Peel the first shell off the chestnuts and cook them in a chestnut pan until the second shell can be removed.

  2. Stew the chestnuts in half of the prepared liquor for 30 minutes.

  3. Reserve whole chestnuts for garnish and chop the remainder.

  4. Strain the chopped chestnuts through a sieve with the liquor they were stewed in.

Finish and serve

  1. Add the rest of the stock and simmer for 6-7 minutes.

  2. Place whole chestnuts in a tureen and pour the soup over them.

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. Carrot + celerytop 1% of all pairs
    Smell alikestrong
    Cooked together10,173 recipes

    Shared aroma: myristicin (spice, warm).

  2. Carrot + leektop 3% of all pairs
    Smell alikestrong
    Cooked together1,310 recipes

    Shared aroma: coumarin (sweet, hay).

  3. Leek + celerytop 4% of all pairs
    Smell alikestrong
    Cooked together1,093 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Onion + leektop 4% of all pairs
    Smell alikestrong
    Cooked together1,326 recipes

    Shared aroma: ethyl butyrate (apple, fruity).

  5. Onion + carrottop 6% of all pairs
    Smell alikemoderate
    Cooked together21,601 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Chestnuts
Give the soup its body and sweet, starchy flavour when chopped and strained.
Butter
Fat that browns the vegetables and adds richness and aroma.
Onions
Provide savoury sweetness and aromatic base as they soften and brown.
Leeks
Add mild onion-like flavour that deepens the soup's base.
Stock
Forms the liquid base that carries the flavour and thins the puréed soup.

The step that matters

Cooking the chestnuts until the second shell comes off. Chestnuts must be cooked long enough to soften the inner skin so it peels away cleanly; undercooked nuts resist peeling and leave bitter skin in the soup.

Swap the chestnut

How well each one fits the dish's main ingredients (onion, carrot, leek, celery, butter):

  1. Lentilsfits better
  2. Beansfits better
  3. Chickpeafits better
  4. Chestnutthe original

Fit is the average pairing score against onion, carrot, leek, celery, butter. 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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