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Oyster Soup

A soup made from oyster liquor, water or milk, flour, pepper, salt, vinegar, butter, served over buttered toast.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Flour and butternut share more aroma than cooks usually use. They rank in the top 4% of all ingredient pairs, and cooks put them together in 37 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Oyster Soup

Ingredients

Directions

Prepare the broth

  1. Remove the oysters from the liquor.

  2. In a pot, combine the oyster liquor with water or milk and heat.

  3. Mix flour with a little water and stir it into the boiling liquor.

Season and serve

  1. Season with pepper, salt, and vinegar.

  2. Add butter and let it boil again.

  3. Serve over buttered toast.

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 + butternuttop 4% of all pairs
    Smell alikestrong
    Cooked together37 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

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

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

  5. Pepper + butternuttop 14% of all pairs
    Smell alikemoderate
    Cooked together51 recipes

    Shared aroma: coumarin (sweet, hay).

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

Flour
Thickens the broth so it has a light body rather than running thin.
Oyster liquor
Provides the main briny, savory flavor of the soup.
Butter
Adds richness and a smooth finish to the broth.
Vinegar
Adds a sharp acidity that brightens the flavor of the soup.

The step that matters

Stirring flour into the boiling liquor. Flour added as a paste with a little water needs to be stirred in well while the liquid boils, or it clumps and stays raw-tasting instead of thickening smoothly.

Swap the butternut

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

  1. Almondfits better
  2. Chestnutfits better
  3. Walnutfits better
  4. Butternutthe original

Fit is the average pairing score against oyster, milk, flour, pepper, butter. 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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