Why it works: Tarragon and chervil match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 824 recipes. Both carry estragole, which smells anise, licorice. The science ↓
Mayonnaise Sauce
Ingredients
Directions
In a basin, stir the yolks of the eggs well.
Add salt, mustard, and Neapolitan pepper.
Mix in olive oil drop by drop until thick like butter.
Stir in tarragon vinegar, chervil, chili, garlic, and lemon juice.
Keep the sauce cool to maintain its thickness.
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.
Photo for illustrative purposes only · Contact us to use it
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 + cherviltop 1% of all pairsSmell alikestrongCooked together824 recipes
Shared aroma: estragole (anise, licorice).
-
Mustard + tarragontop 1% of all pairsSmell alikestrongCooked together901 recipes
Shared aroma: methyleugenol (clove, spice).
-
Mustard + cherviltop 1% of all pairsSmell alikestrongCooked together207 recipes
Shared aroma: methyleugenol (clove, spice).
-
Olive + garlictop 2% of all pairsSmell alikemoderateCooked together25,665 recipes
Shared aroma: linalool (floral, citrus).
-
Pepper + tarragontop 5% of all pairsSmell alikestrongCooked together2,399 recipes
Shared aroma: estragole (anise, licorice).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsify the oil into the sauce and thicken it as they bind with the fat.
- Olive oil
- Forms the bulk of the sauce, giving it richness and a thick, buttery body.
- French mustard
- Helps hold the oil and egg emulsion together so it stays smooth.
- Tarragon vinegar
- Adds acidity that brightens the sauce and balances the richness of the oil.
The step that matters
Adding the olive oil drop by drop. Oil added too quickly cannot be dispersed into the egg yolks, so the emulsion breaks and the sauce stays runny or separates. Slow addition lets tiny oil droplets get coated by the yolk proteins, which is what makes the sauce thick.
Swap the garlic
How well each one fits the dish's main ingredients (egg, mustard, pepper, olive, tarragon, vinegar, chervil):
- Capersfits better
- Parsleyfits better
- Dillfits better
- Garlicthe original
Fit is the average pairing score against egg, mustard, pepper, olive, tarragon, vinegar, chervil. 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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