Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Sauce Bordelaise
Ingredients
Directions
Brown the chopped onion in fat or butter.
Add the beef gravy and wine, then season with pepper, salt, and parsley.
Simmer the mixture until it thickens, adding browned flour as needed.
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 + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + beeftop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + white winetop 9% of all pairsSmell alikemoderateCooked together5,083 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef gravy
- Provides the savory meaty base and body of the sauce.
- Claret or white wine
- Adds acidity and depth, balancing the richness of the gravy.
- Browned flour
- Thickens the sauce as it simmers, giving it body and a slightly nutty color.
- Onion
- Softens and browns in fat, adding sweetness and aromatic flavor.
- Fat or butter
- Carries the browning of the onion and adds richness.
The step that matters
Simmering until it thickens. Thickening depends on the browned flour being fully cooked into the liquid as it simmers. Adding it too quickly or not simmering long enough can leave lumps or a thin, raw-tasting sauce.
Swap the onion
How well each one fits the dish's main ingredients (butter, beef, white wine, pepper, parsley, flour):
- Shallotfits better
- Carrotfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against butter, beef, white wine, pepper, parsley, flour. 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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