Why it works: Tarragon and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,547 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sauce for Raw Oysters
Ingredients
Directions
In a bowl, slowly mix the tarragon vinegar into the olive oil while beating constantly.
Add the juice of the lemon and the remaining ingredients.
Grate the onion finely and mix it in.
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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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Olive + oniontop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Tarragon + olivetop 9% of all pairsSmell alikestrongCooked together1,323 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Tarragon + oniontop 12% of all pairsSmell alikemoderateCooked together1,568 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tarragon vinegar
- Provides sharp acidity that brightens the sauce and balances the richness of the oysters.
- Olive oil
- Adds fat and a smooth mouthfeel, and forms a loose emulsion with the vinegar when beaten.
- Onion
- Contributes pungent, aromatic flavour that adds savoury bite to the sauce.
The step that matters
Beating the vinegar into the oil. Vinegar and oil do not mix on their own. Adding the vinegar slowly while beating breaks it into tiny droplets suspended in the oil, so the sauce stays combined instead of separating into layers.
Swap the onion
How well each one fits the dish's main ingredients (tarragon, vinegar, olive, sauce):
- Mustardfits better
- Shallotfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against tarragon, vinegar, olive, sauce. 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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