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Oyster Sauce for Omelet

A creamy sauce made with butter, flour, milk, oysters, and salt, served folded into an omelet.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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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 Sauce for Omelet

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Make the sauce

  1. Melt the butter in a saucepan over medium heat.

  2. Stir in the flour and cook for 1 minute.

  3. Gradually add the milk, stirring constantly until thickened.

  4. Add the oysters and salt, and cook for a few minutes until heated through.

Serve

  1. Serve the sauce folded into the omelet and garnish with parsley.

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 + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + parsleytop 12% of all pairs
    Smell alikemoderate
    Cooked together16,675 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + oystertop 12% of all pairs
    Smell alikemoderate
    Cooked together8,184 recipes

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

  5. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour 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

Butter
Fat that enriches the sauce and carries flavour through the milk.
Flour
Starch that thickens the milk into a smooth, cohesive sauce.
Milk
Liquid that forms the body of the sauce once it thickens.
Oysters
Main flavour ingredient, giving the sauce its briny, savoury character.

The step that matters

Adding the milk gradually. Flour starch must disperse evenly in liquid to avoid lumps. Adding the milk slowly while stirring constantly lets the starch spread out, and it only thickens fully once the mixture gets hot enough for the starch granules to swell.

Swap the parsley

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

  1. Nutmegfits better
  2. Cinnamonfits better
  3. Capersfits better
  4. Parsleythe original

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