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Oyster Soup

A simple oyster soup made with oysters, water, flour, salt, pepper, butter, and served with crackers.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Oyster Soup

Ingredients

Directions

Prepare

  1. Prepare a foundation by omitting onion and celery, using 2 tablespoons of flour.

  2. In a large bowl, combine 1 quart of oysters with 1 cup of water.

  3. Remove each oyster with your fingers to ensure no shell remains, then drain in a colander.

Make the soup

  1. Strain the oyster liquor through a fine strainer and bring it to a boil, skimming well.

  2. Add the oysters and simmer until they plump and curl at the edges.

  3. Combine the oysters with the foundation, adding enough broth to achieve the right consistency.

  4. Season with more salt and pepper if needed, and add butter until it just floats on top.

Serve

  1. Serve with browned crackers.

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. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Oyster + buttertop 12% of all pairs
    Smell alikemoderate
    Cooked together8,184 recipes

    Shared aroma: 2,6-nonadienal (cucumber, green).

  3. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Pepper + buttertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  5. Oyster + peppertop 22% of all pairs
    Smell alikelow
    Cooked together7,663 recipes

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

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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 texture, and firm up slightly when gently simmered.
Flour
Thickens the broth into a light, smooth consistency as it combines with the liquid.
Butter
Adds richness and a silky mouthfeel to the finished soup.

The step that matters

Simmer the oysters until they just plump and curl. Oysters cook very quickly, and overcooking makes them tough and shrunken. Stopping as soon as the edges curl keeps them tender and juicy.

“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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