Why it works: Tarragon and chervil match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 824 recipes. Both carry estragole, which smells anise, licorice. The science ↓
Tarragon Sauce
Ingredients
Directions
Reduce 2 tablespoons of tarragon vinegar to 1 tablespoon in a saucepan.
Add 6 tablespoons of good butter sauce to the reduced vinegar.
Mix in a little chopped tarragon and chervil.
If the sauce is not strong enough, add a small bit of glaze and a little more tarragon vinegar.
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 + cherviltop 1% of all pairsSmell alikestrongCooked together824 recipes
Shared aroma: estragole (anise, licorice).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Vinegar + cherviltop 14% of all pairsSmell alikemoderateCooked together561 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Tarragon + saucetop 17% of all pairsSmell alikelowCooked together566 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tarragon vinegar
- Provides the sharp, aromatic acidity that flavours the sauce once reduced.
- Butter sauce
- Forms the rich, creamy body of the sauce.
- Chopped tarragon
- Adds its distinctive aromatic, anise-like flavour.
- Chopped chervil
- Adds a delicate, fresh herbal aroma.
The step that matters
Reducing the tarragon vinegar. Reducing concentrates the vinegar's acidity and aromatic flavour, so it must be cooked down to the stated volume. Reducing too far makes the sauce overly sharp, while stopping early leaves it weak and thin.
Swap the chervil
How well each one fits the dish's main ingredients (tarragon, vinegar, butter, sauce):
- Chervilthe original
- Capersfits about as well
- Parsleyfits less well
- Thymefits less well
Fit is the average pairing score against tarragon, vinegar, butter, sauce. 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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