Why it works: Shallot and tarragon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 602 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Mayonnaise Sauce
Ingredients
Directions
In a bowl, combine the hard-boiled egg yolks, salt, mustard powder, shallot, and white pepper.
Mash these ingredients together with the back of a spoon.
Gradually add oil while mixing until you achieve a moist paste.
Incorporate the raw egg yolks one at a time, continuing to add oil until the sauce reaches your desired consistency.
Finish by adding tarragon vinegar to taste.
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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Shallot + tarragontop 1% of all pairsSmell alikestrongCooked together602 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + shallottop 1% of all pairsSmell alikestrongCooked together859 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Mustard + tarragontop 1% of all pairsSmell alikestrongCooked together901 recipes
Shared aroma: methyleugenol (clove, spice).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Raw egg yolks
- Emulsify the oil into the sauce, giving it a thick, creamy structure.
- Hard-boiled egg yolks
- Form a smooth base paste that helps hold the oil evenly during emulsifying.
- Oil
- Provides the fat that, dispersed in the yolks, makes the sauce rich and thick.
- Mustard powder
- Helps stabilize the emulsion and adds a sharp, savory bite.
- Tarragon vinegar
- Adds acidity that brightens the flavor and balances the richness of the oil.
The step that matters
Adding the oil gradually. Oil must be added slowly so it disperses into tiny droplets held by the egg yolk's lecithin. Adding it too fast can break the emulsion, leaving the sauce oily and runny.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, mustard, shallot, tarragon, vinegar):
- Capersfits better
- Dillfits better
- Parsleyfits better
- White pepperthe original
Fit is the average pairing score against egg, mustard, shallot, tarragon, vinegar. 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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