Why it works: Cider and vinegar are a kitchen classic. They rank in the top 6% of all ingredient pairs, and 3,431 recipes mention both. Both carry 4-ethyl-2-methoxyphenol, which smells smoky, clove. The science ↓
Tartars Sauce
Ingredients
Directions
In a small bowl, lightly beat the vinegar and egg yolks together.
Slowly add the salad oil or melted butter drop by drop while stirring continuously.
Season the mixture with pepper, salt, and mustard.
Stir in the finely chopped gherkins (or capers) and serve in a gravy boat with boiled salmon or cold meats.
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 aroma chemistry they share, and how many recipes mention both.
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Cider + vinegartop 6% of all pairsAroma overlapmoderateMentioned together3,431 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
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Vinegar + mustardtop 7% of all pairsAroma overlapmoderateMentioned together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + mustardtop 9% of all pairsAroma overlapmoderateMentioned together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cider + mustardtop 13% of all pairsAroma overlaplowMentioned together1,414 recipes
Shared aroma: linalool (floral, citrus).
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Pepper + vinegartop 14% of all pairsAroma overlapmoderateMentioned together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Emulsifier that holds the oil and vinegar together as a thick, smooth sauce.
- Salad oil
- Provides the fat that gives the sauce its richness and body.
- Cider vinegar
- Adds acidity that brightens the sauce and cuts the richness of the oil.
- Mustard
- Adds sharpness and helps stabilise the emulsion.
The step that matters
Adding the oil drop by drop. Oil added too quickly cannot be absorbed by the egg yolks, so the sauce can split into a greasy, separated liquid. Adding it slowly while stirring lets the yolk lecithin surround tiny oil droplets and form a stable emulsion.
Flavor stand-ins for the mustard
How well each one fits the dish's main ingredients (egg, butter, pepper, cider, vinegar):
- Capsicumabout as good a flavor fit
- Mustardthe original
- Cucumberabout as good a flavor fit
- Shallotabout as good a flavor fit
Fit is the average pairing score against egg, butter, pepper, cider, vinegar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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