Why it works: Cucumber and onion match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 6,050 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Cucumbers, to Pickle
Ingredients
Directions
Salt and drain
Slice large cucumbers and place them in a pewter dish.
Slice two large onions thinly for every dozen cucumbers.
Layer sliced onions with a handful of coarse sea salt.
Cover with another pewter dish.
Let stand for 24 hours.
Transfer cucumbers to a colander to drain.
Pack and pickle
Place cucumbers in a jar.
Cover with white wine vinegar.
Let stand for 4 hours.
Boil the vinegar with salt.
Add mace, whole pepper, and sliced ginger.
Pour the boiling vinegar over the cucumbers.
Cover and seal
Cover tightly.
Let cool.
Seal the jar.
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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Cucumber + oniontop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cucumber + vinegartop 8% of all pairsSmell alikemoderateCooked together4,734 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
-
Pepper + gingertop 9% of all pairsSmell alikestrongCooked together6,800 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + gingertop 9% of all pairsSmell alikemoderateCooked together7,595 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + gingertop 10% of all pairsSmell alikemoderateCooked together973 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumbers
- Form the bulk of the pickle and give it a firm, crisp bite.
- Large onions
- Add sweetness and body, and release moisture when layered with salt.
- White wine vinegar
- Adds sharp acidity that flavours the pickle and helps preserve it.
- Ginger
- Adds a warm, aromatic note to the vinegar.
- Mace
- Adds a warm, aromatic spice flavour to the vinegar.
- Whole pepper
- Adds gentle peppery aroma and heat to the pickling liquid.
The step that matters
Draining the salted cucumbers well before jarring. Salt draws water out of the cucumbers and onions. Any moisture left behind dilutes the vinegar and softens the pickle, so the cucumbers should drain thoroughly before they go into the jar.
Swap the mace
How well each one fits the dish's main ingredients (cucumber, onion, white wine, vinegar, pepper, ginger):
- Garlicfits better
- Turmericfits better
- Tarragonfits better
- Macethe original
Fit is the average pairing score against cucumber, onion, white wine, vinegar, pepper, ginger. 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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