Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 81,283 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Oyster Sauce
Ingredients
Directions
Prepare the oysters
Remove the oysters from their shells and reserve the liquor.
In a stewpan, combine the oyster liquor and oysters, and bring to a boil.
Once boiling, remove from heat and strain the mixture into a clean basin.
Wash the stewpan with hot water, then return the strained liquor to it.
Make the sauce
Add the milk and butter mixed with flour, and bring to a boil.
Strain the sauce through a sieve to ensure smoothness, then return it to the saucepan.
Chop the soft parts of the oysters and add them to the sauce, keeping them warm.
If the sauce is too thick, add melted butter, cream, or milk mixed with egg yolk (do not add until the sauce is done).
For extra flavor, pound the soft parts of 6 raw oysters, strain, and stir into the sauce.
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.
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Milk + buttertop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Oyster + buttertop 12% of all pairsAroma overlapmoderateMentioned together8,184 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Milk + flourtop 14% of all pairsAroma overlaplowMentioned together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + peppertop 19% of all pairsAroma overlapmoderateMentioned together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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 savoury flavour and the soft parts that give body to the sauce.
- Butter
- Adds richness and fat, giving the sauce a smooth, rounded mouthfeel.
- Flour
- Thickens the milk and oyster liquor into a smooth, cohesive sauce.
- Milk
- Forms the liquid base of the sauce and adds mild sweetness and body.
- Egg yolk
- Enriches and thickens the sauce when mixed into the optional thinning liquid.
The step that matters
Adding the liquid to thin the sauce. Egg yolk can curdle or scramble if it meets a hot sauce. Adding the enriched liquid only after the sauce is finished and off the boil keeps it smooth and prevents thickening from setting too firmly.
“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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