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Oyster Soup, Rich

A savory oyster soup made with oysters, fish stock, egg yolks, butter, anchovy essence, lemon juice, and cayenne.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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Why it works: Oyster and fish match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 488 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Oyster Soup, Rich

Ingredients

Directions

Prepare the base

  1. Beard the oysters and boil the beards in fish stock for 20 minutes.

  2. Pound the hard-boiled egg yolks with butter, salt, white pepper, anchovy essence, and lemon juice.

Make the soup

  1. Strain the stock and stir in the pounded mixture and oyster liquor.

  2. Simmer for a few minutes, adjusting salt, pepper, and adding cayenne.

  3. Stir in the oysters and beaten raw egg yolks without boiling.

  4. Stir until thick and smooth, then serve hot with small croutons.

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 aroma chemistry they share, and how many recipes mention both.

  1. Oyster + fishtop 3% of all pairs
    Aroma overlapstrong
    Mentioned together488 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Fish + anchovytop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together615 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  3. Oyster + anchovytop 4% of all pairs
    Aroma overlapstrong
    Mentioned together601 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  4. Lemon + arrowroottop 4% of all pairs
    Aroma overlapmoderate
    Mentioned together553 recipes

    Shared aroma: coumarin (sweet, hay).

  5. Fish + buttertop 5% of all pairs
    Aroma overlapstrong
    Mentioned together4,432 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

What each ingredient does

Oysters
Provide the main flavour and tender texture of the soup.
Hard-boiled egg yolks
Pounded smooth, they enrich the soup and give it a creamy body.
Raw egg yolks
Thicken the soup as they gently set, giving a smooth, velvety texture.
Butter
Adds fat and richness, rounding out the flavour and mouthfeel.
Fish stock
Forms the liquid base, carrying the savoury flavour of the whole soup.

The step that matters

Stir in the oysters and raw egg yolks without boiling. Raw egg yolks thicken by gentle setting; if the soup boils, the yolks can scramble and curdle, leaving a grainy texture instead of a smooth, thick soup.

Flavor stand-ins for the arrowroot

The recipe marks arrowroot as optional. How well each one fits the dish's main ingredients (oyster, fish, egg, butter, white pepper, anchovy, lemon):

  1. Asparagusbetter flavor fit
  2. Shallotbetter flavor fit
  3. Potatobetter flavor fit
  4. Arrowrootthe original

Fit is the average pairing score against oyster, fish, egg, butter, white pepper, anchovy, lemon. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“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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