Why it works: Pepper and nutmeg match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 13,015 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Onion-savce
Ingredients
Directions
Make the sauce
In a saucepan, melt the butter over medium heat.
Add the chopped onion and cook until it begins to brown.
Stir in the flour and cook until it is brown.
Gradually add the port wine and boiling water, stirring continuously.
Add the salt, pepper, and nutmeg, and bring the sauce to a boil.
Keep the sauce hot until ready to serve.
Finish with drippings
When the birds are done, pour their drippings into the sauce and mix well.
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.
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Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + port winetop 13% of all pairsSmell alikemoderateCooked together1,499 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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
- Onion or shallot
- Softens and browns in the butter, adding sweetness and savory depth to the sauce.
- Butter
- Carries the onion and provides richness and flavor as the base fat.
- Flour
- Thickens the sauce as it cooks with the butter and wine liquid.
- Port wine
- Adds sweetness, acidity and fruity depth, and helps deglaze the pan.
The step that matters
Stirring in the flour and liquids. Flour must cook in the fat before liquid is added so it thickens smoothly without lumps. Adding the port and boiling water gradually while stirring continuously keeps the sauce smooth as it thickens.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, port wine, pepper, nutmeg):
- Shallotfits better
- Capsicumfits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against butter, flour, port wine, pepper, nutmeg. 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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