Why it works: Shallot and tarragon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 602 recipes mention both. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Piquant Sauce
Ingredients
Directions
Prepare
Finely chop the shallot.
In a saucepan, combine the tarragon vinegar and vinegar with the shallot.
Make the sauce
Add the cream and bring to a gentle simmer.
Whisk in the egg and cook until slightly thickened.
Stir in the butter until melted and smooth.
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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Shallot + tarragontop 1% of all pairsAroma overlapstrongMentioned together602 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Tarragon + vinegartop 7% of all pairsAroma overlapmoderateMentioned together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Cream + buttertop 8% of all pairsAroma overlapmoderateMentioned together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Shallot + vinegartop 12% of all pairsAroma overlapmoderateMentioned together2,374 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Shallot + buttertop 17% of all pairsAroma overlapmoderateMentioned together4,426 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg
- Thickens the sauce as it cooks gently, giving it body.
- Butter
- Stirred in at the end to enrich the sauce and give it a smooth, glossy finish.
- Cream
- Adds richness and moisture, and helps the sauce stay smooth when heated.
- Tarragon vinegar
- Provides acidity and a sharp, aromatic flavour that defines the sauce.
The step that matters
Whisk in the egg and cook until slightly thickened. Egg proteins set as they heat, so if the sauce gets too hot or simmers hard, the egg can scramble and turn grainy. Keep the heat gentle and whisk constantly.
Flavor stand-ins for the shallot
How well each one fits the dish's main ingredients (tarragon, vinegar, cream, egg, butter):
- Shallotthe original
- Chiveabout as good a flavor fit
- Mustardabout as good a flavor fit
- Asparagusabout as good a flavor fit
Fit is the average pairing score against tarragon, vinegar, cream, egg, butter. 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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