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Oyster Soup

A creamy oyster soup made with oysters, butter, flour, mushroom ketchup, milk, and optional cream.

From an old cookbook · modernised transcription
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Oyster Soup

Ingredients

Directions

Prepare

  1. Drain the oysters in a colander over a bowl to collect the juice.

  2. Pour the oyster juice into a saucepan that holds about 3 pints.

  3. Mix the butter and flour together in a bowl.

Make the soup

  1. Add the butter-flour mixture, salt, pepper, and mushroom ketchup to the broth in the saucepan.

  2. Bring the mixture to a boil, then remove from heat and add the oysters.

  3. Return the saucepan to the heat and boil for 1 minute.

Serve

  1. Preheat a soup tureen by filling it with boiling water, then empty it.

  2. Add the milk and cream to the tureen, then pour the hot soup into the tureen.

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  2. Butter + mushroomtop 7% of all pairs
    Smell alikemoderate
    Cooked together12,525 recipes

    Shared aroma: trans-2-decenal (waxy, orange).

  3. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  4. Pepper + mushroomtop 11% of all pairs
    Smell alikemoderate
    Cooked together13,580 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Mushroom + milktop 12% of all pairs
    Smell alikemoderate
    Cooked together2,231 recipes

    Shared aroma: 1-hexanal (fruit).

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

What each ingredient does

Oysters
Provide the main flavor and a tender, briny texture to the soup.
Butter
Adds richness and carries flavor through the broth.
Flour
Thickens the broth as it cooks, giving it body.
Milk
Adds creaminess and softens the briny edge of the broth.
Cream
Adds extra richness and a smoother mouthfeel to the finished soup.
Mushroom catsup
Adds savory depth and umami to the broth.

The step that matters

Boiling the oysters for 1 minute. Oysters are added off the heat and then boiled briefly. Prolonged boiling toughens the proteins in the oysters, making them rubbery and shrunken, so the time should be kept short and watched closely.

“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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