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Drink

Fish Stock

A clear liquid made by simmering fish bones, vegetables, and aromatics in water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Fish Stock

Ingredients

Directions

  1. Put all fish bones and trimmings into a saucepan and cover well with water.

  2. Add the chopped carrot, onion, peppercorns, cloves, parsley, and bay leaf.

  3. Simmer for 2 hours.

  4. Strain through a sieve.

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 + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together8,053 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  2. Carrot + clovetop 5% of all pairs
    Smell alikestrong
    Cooked together5,873 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  3. Carrot + oniontop 6% of all pairs
    Smell alikemoderate
    Cooked together21,601 recipes

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

  4. Clove + parsleytop 6% of all pairs
    Smell alikestrong
    Cooked together6,768 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  5. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

What each ingredient does

Fish bones
Release gelatin and savory flavour into the water, giving the stock body and depth.
Onion
Adds sweetness and savory depth as it softens and releases its flavour into the liquid.
Carrot
Adds gentle sweetness and aromatic depth to the liquid.

The step that matters

Simmer gently. Keeping the liquid at a gentle simmer rather than a hard boil extracts flavour cleanly and keeps the stock clear. Boiling hard can emulsify fats and cloud the broth.

Swap the onion

How well each one fits the dish's main ingredients (fish, carrot, clove, parsley):

  1. Parsnipfits better
  2. Turnipfits better
  3. Shallotfits better
  4. Onionthe original

Fit is the average pairing score against fish, carrot, clove, parsley. 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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