Why it works: Mustard and tarragon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 901 recipes. Both carry methyleugenol, which smells clove, spice. The science ↓
Mayonnaise Dbessing
Ingredients
Directions
Make the mayonnaise
In a bowl, beat the yolks of two raw eggs with salt until smooth.
Add 2 teaspoons of thick mustard.
Gradually pour in ¾ cup of salad oil while stirring continuously.
Add ⅓ cup of tarragon vinegar and stir until the mixture is creamy.
Store
Store in a corked bottle.
For better preservation, stir in 1 tablespoon of boiling water drop by drop before bottling.
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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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).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + tarragontop 22% of all pairsSmell alikelowCooked together1,789 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
-
Egg + mustardtop 28% of all pairsSmell alikemoderateCooked together9,210 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsifiers that bind the oil and vinegar into a stable, thick dressing.
- Salad oil
- Provides the fat that gives the dressing its rich, creamy body.
- Thick mustard
- Helps stabilise the emulsion and adds sharpness that balances the oil.
- Tarragon vinegar
- Adds acidity and flavour, and helps set the emulsified texture.
The step that matters
Gradually pour in the salad oil while stirring continuously. Adding oil too fast before the yolks have emulsified can cause the mixture to split and separate. Slow addition lets small oil droplets disperse evenly and stay suspended in the yolk mixture.
Swap the mustard
How well each one fits the dish's main ingredients (egg, tarragon, vinegar):
- Shallotfits about as well
- Mustardthe original
- Cucumberfits about as well
- Chivefits less well
Fit is the average pairing score against egg, 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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