Name: Oyster Sauce
Ingredients: 3 to 4 dozen oysters; ½ cup milk; 2 ½ ounces butter; 1 tablespoon flour

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

3 to 4 dozen oysters
½ cup milk
2 ½ ounces butter
1 tablespoon flour

Directions

Prepare the oysters

Choose plump oysters and keep them in their shells until ready to cook.
Save the oyster liquor.
Strain the liquor into a stew-pan with the oysters.

Make the sauce

Bring the liquid to a boil.
Remove from heat and pour through a sieve into a clean basin.
Wash the stew-pan with hot water.
Return the strained liquor to the stew-pan.
Add an equal amount of milk and the butter mixed with flour.
Bring the mixture to a boil.
Pour the sauce through a sieve back into the saucepan for a smooth texture.

Finish with the oysters

Shave the oysters, removing any gristly parts.
Add only the soft parts of the oysters to the sauce.
If the oysters are large, cut them in half.
Keep the halves warm without boiling.

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 aroma chemistry they share, and how many recipes mention both.

Milk + buttertop 7% of all pairs

Aroma overlapmoderate

Mentioned together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter + flourtop 12% of all pairs

Aroma overlaplow

Mentioned together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Oyster + buttertop 12% of all pairs

Aroma overlapmoderate

Mentioned together8,184 recipes

Shared aroma: 2,6-nonadienal (cucumber, green).
Milk + flourtop 14% of all pairs

Aroma overlaplow

Mentioned together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).
Oyster + milktop 20% of all pairs

Aroma overlapmoderate

Mentioned together2,933 recipes

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

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 briny flavor and the tender, soft pieces in the sauce.
Milk: Adds creaminess and dilutes the oyster liquor into a mellow, smooth sauce.
Butter: Adds richness and a silky mouthfeel to the finished sauce.
Flour: Thickens the sauce as its starch swells in the hot liquid.