Why it works: Tarragon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,563 recipes. Both carry estragole, which smells anise, licorice. The science ↓
Sauce Vinaigrette
Ingredients
Directions
Make the sauce
Chill a bowl and add a small piece of ice.
Add salt, and slowly pour in the olive oil while stirring rapidly.
Once thickened, remove the ice and mix in the vinegar or lemon juice, chives, and parsley.
Serve
Serve immediately.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together1,563 recipes
Shared aroma: estragole (anise, licorice).
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Tarragon + chivetop 1% of all pairsSmell alikestrongCooked together589 recipes
Shared aroma: coumarin (sweet, hay).
-
Parsley + chivetop 3% of all pairsSmell alikestrongCooked together2,150 recipes
Shared aroma: coumarin (sweet, hay).
-
Olive + parsleytop 6% of all pairsSmell alikestrongCooked together9,649 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Olive + chivetop 7% of all pairsSmell alikestrongCooked together1,633 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Olive oil
- Forms the body of the sauce as it is whisked into the emulsion.
- Vinegar or lemon juice
- Adds acidity that brightens the sauce and balances the richness of the oil.
- Salt
- Seasons the sauce and helps draw out flavour from the other ingredients.
The step that matters
Pouring the oil slowly while stirring rapidly. Oil added too fast does not disperse into the liquid, so the emulsion fails to thicken and the sauce separates. Adding it slowly in a thin stream lets each droplet be coated and suspended before more oil arrives.
Swap the chive
How well each one fits the dish's main ingredients (tarragon, olive, vinegar, parsley):
- Shallotfits better
- Lettucefits about as well
- Mustardfits about as well
- Chivethe original
Fit is the average pairing score against tarragon, olive, vinegar, parsley. 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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