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Dinner. Stewed Eels.

A simple stew of eels simmered with water, salt, pepper, butter, onion, and parsley.

From an old cookbook · modernised transcription
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Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Dinner. Stewed Eels.

Ingredients

Directions

Prepare

  1. Clean and cut the eels into pieces.

  2. Place the eels in a pot with enough water to cover them.

  3. Add salt, pepper, and a knob of butter.

  4. Chop the onion and parsley, then add to the pot.

Cook and serve

  1. Simmer until the eels are tender.

  2. Serve hot.

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. Pepper + parsleytop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

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

  3. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  4. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

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

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

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

What each ingredient does

Eels
The main protein; cooking slowly until tender breaks down its connective tissue.
Butter
Adds fat and richness to the cooking liquid, giving a rounder flavour.
Onion
Adds savoury sweetness and aroma as it softens in the simmering liquid.

The step that matters

Simmer until the eels are tender. Eel flesh needs long, gentle simmering to become tender. Boiling hard can toughen the protein and break the pieces apart, so keep the liquid at a gentle simmer and check for tenderness rather than relying on a set time.

Swap the onion

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

  1. Carrotfits better
  2. Shallotfits better
  3. Potatofits better
  4. Onionthe original

Fit is the average pairing score against pepper, butter, 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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