Why it works: Tarragon and capers match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 379 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Modern Cookery
Ingredients
Directions
Make the vinaigrette
In a bowl, combine tarragon vinegar, minced tarragon, and eschalots.
Add the oil and mix well.
Incorporate the egg yolks and stir until smooth.
Fold in the chopped capers, gherkins, and olives if using.
Serve
Serve as a dressing or sauce.
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 + caperstop 1% of all pairsSmell alikestrongCooked together379 recipes
Shared aroma: coumarin (sweet, hay).
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Capers + olivetop 3% of all pairsSmell alikestrongCooked together1,688 recipes
Shared aroma: coumarin (sweet, hay).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Tarragon + olivetop 9% of all pairsSmell alikestrongCooked together1,323 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Oil
- Forms the body of the dressing, giving it richness and a smooth mouthfeel.
- Egg yolks
- Emulsifiers that bind the oil and vinegar so the dressing stays smooth and creamy.
- Tarragon vinegar
- Provides the acidity and the main tarragon flavour of the dressing.
The step that matters
Incorporating the egg yolks. Egg yolks help emulsify oil and acid into a stable, smooth dressing. Adding them too quickly or not stirring thoroughly can leave the oil separated and the texture greasy.
Swap the capers
How well each one fits the dish's main ingredients (tarragon, vinegar, egg, olive):
- Capersthe original
- Parsleyfits about as well
- Dillfits about as well
- Thymefits less well
Fit is the average pairing score against tarragon, vinegar, egg, olive. 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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