Why it works: Chervil and sauce match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and 262 recipes mention both. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
The recipe
Ingredients
Contains: egg (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the herbs
Wash the chervil, tarragon, and chives.
Boil the herbs in water with salt for 5-6 minutes.
Cool the herbs.
Drain the herbs.
Squeeze the herbs dry.
Make the sauce
Pound the herbs well.
Add the Mayonnaise sauce.
Pass the mixture through a sieve.
Mix with more Mayonnaise sauce.
If the sauce is too pale, add prepared spinach or mashed green peas for coloring.
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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Chervil + saucetop 9% of all pairsAroma overlapstrongMentioned together262 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Chervil + tarragontop 1% of all pairsAroma overlapstrongMentioned together795 recipes
Shared aroma: estragole (anise, licorice).
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Chervil + chivetop 1% of all pairsAroma overlapstrongMentioned together370 recipes
Shared aroma: coumarin (sweet, hay).
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Tarragon + chivetop 3% of all pairsAroma overlapmoderateMentioned together544 recipes
Shared aroma: coumarin (sweet, hay).
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Chive + spinachtop 3% of all pairsAroma overlapstrongMentioned together163 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Chervil
- Provides the main fresh herbal aroma of the sauce.
- Tarragon
- Adds its characteristic aniseed-like aroma to the sauce.
- Chives
- Contributes a mild onion-like flavor and fresh green color.
- Mayonnaise sauce
- Provides the fat and creamy body that carries the herb flavor.
The step that matters
Squeeze the herbs dry. Herbs hold a lot of water after boiling. Excess moisture would thin the mayonnaise and dilute the flavor, so the herbs should be pressed well before pounding.
Flavor stand-ins for the peas
The recipe marks peas as optional. How well each one fits the dish's main ingredients (chervil, tarragon, chive, sauce, spinach):
- Lentilsbetter flavor fit
- Beansbetter flavor fit
- Chestnutabout as good a flavor fit
- Peasthe original
Fit is the average pairing score against chervil, tarragon, chive, sauce, spinach. 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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