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 ↓
Salad Dressing
Ingredients
Directions
Make the dressing
Boil the eggs for 10 minutes, then cool them.
Rub the yolks into a powder in a bowl.
Add white pepper, salt, mustard powder, and sifted sugar to the yolks.
Gradually mix in the salad oil while stirring continuously.
Add tarragon vinegar and regular vinegar drop by drop, stirring the same way.
The dressing should resemble rich cream.
Serve
Pour it over the salad and stir lightly.
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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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).
-
White pepper + tarragontop 15% of all pairsSmell alikemoderateCooked together139 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg yolks emulsify with the oil, giving the dressing its thick, creamy body.
- Salad oil
- Forms the bulk of the emulsion, giving richness and a smooth, creamy texture.
- Mustard powder
- Helps stabilise the emulsion and adds a sharp, savoury bite.
- Vinegar
- Adds acidity that balances the richness of the oil and yolks.
The step that matters
Adding the oil and vinegar gradually. Oil must be added slowly while stirring continuously so the yolk can break it into tiny droplets. Adding it too fast or all at once causes the emulsion to split and the dressing to separate.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, mustard, sugar, tarragon, vinegar):
- Capersfits better
- Dillfits better
- Allspicefits better
- White pepperthe original
Fit is the average pairing score against egg, mustard, sugar, 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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