Why it works: Horseradish and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Cucumber Pickles
Ingredients
Directions
Brine the cucumbers
Place small cucumbers in a crock and pour boiling weak brine over them.
Let them stand until the next day.
Repeat this process three or four times.
Pack and pickle
To a quart jar of pickles, add onions, cinnamon, horseradish, mustard seeds, and peppers.
Heat vinegar and sweeten it slightly.
Add a small piece of alum.
Pack the pickles into jars.
Pour the hot vinegar over them.
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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Horseradish + mustardtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Cucumber + horseradishtop 2% of all pairsSmell alikestrongCooked together640 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + mustardtop 3% of all pairsSmell alikestrongCooked together2,281 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cinnamon + horseradishtop 6% of all pairsSmell alikestrongCooked together515 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Small cucumbers
- The main vegetable that becomes the pickles, firming and flavouring as it steeps in brine.
- Vinegar
- Provides the sour acidity that preserves the pickles and gives them their tang.
- Sugar
- Adds a slight sweetness to the hot vinegar, balancing its sharpness.
- Small piece of alum
- Helps keep the cucumbers firm and crisp during pickling.
- White mustard seed
- Adds a pungent, sharp flavour to the pickling liquid and jars.
The step that matters
Repeated brining of the cucumbers. Soaking in boiling brine and letting them stand repeatedly draws water out of the cucumbers and firms their flesh. Skipping or shortening the repeats can leave the pickles soft and watery.
Swap the onion
How well each one fits the dish's main ingredients (cucumber, cinnamon, horseradish, mustard, pepper, vinegar, sugar):
- Radishfits better
- Beetrootfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against cucumber, cinnamon, horseradish, mustard, pepper, vinegar, sugar. 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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