Why it works: Fennel and tarragon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 134 recipes. Both carry 4-methoxybenzaldehyde, which smells sweet, anise. The science ↓
Cucumbers.—~Maniere De Fatre Les Cornichons
Ingredients
Directions
Prepare
Clean the gherkins thoroughly in fresh water using a brush or your hand.
Place the gherkins in an earthen pot with a little garlic, a small handful of sea fennel, tarragon, and long pepper.
Heat the vinegar without boiling it.
Pour the heated vinegar over the gherkins.
Cover the pot and let it sit for two to three days.
Boil and repeat
Pour off the vinegar.
Boil the vinegar.
Skim the boiled vinegar.
Pour the boiled and skimmed vinegar back over the gherkins.
Repeat the process two more times.
Boil the vinegar each time.
Skim the boiled vinegar each time.
Finish
On the third time, add the gherkins to the boiling vinegar until they begin to tremble.
Remove the gherkins quickly from the boiling vinegar.
Transfer the gherkins into pots.
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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Fennel + tarragontop 1% of all pairsSmell alikestrongCooked together134 recipes
Shared aroma: 4-methoxybenzaldehyde (sweet, anise).
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Tarragon + peppertop 5% of all pairsSmell alikestrongCooked together2,399 recipes
Shared aroma: estragole (anise, licorice).
-
Fennel + peppertop 7% of all pairsSmell alikestrongCooked together1,216 recipes
Shared aroma: myristicin (spice, warm).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Garlic + fenneltop 8% of all pairsSmell alikestrongCooked together969 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Gherkins
- The main vegetable, whose texture firms and softens with brief heating in vinegar.
- Vinegar
- Its acidity preserves the gherkins and gives the pickle its sharp, sour flavour.
- Garlic
- Adds a pungent aroma that infuses into the vinegar and the gherkins.
- Tarragon
- Contributes a distinct herbal aroma that flavours the pickling liquid.
- Long pepper
- Adds a warm, peppery spice flavour to the pickle.
The step that matters
Dipping the gherkins in boiling vinegar. Brief heat partly cooks the outer flesh and firms it, but prolonged boiling softens the gherkins and makes them limp. Removing them as soon as they begin to tremble keeps them firm.
Swap the garlic
How well each one fits the dish's main ingredients (fennel, tarragon, pepper, vinegar):
- Dillfits better
- Thymefits better
- Parsleyfits better
- Garlicthe original
Fit is the average pairing score against fennel, tarragon, pepper, vinegar. 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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