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 ↓
Sliced Cucumber Pickle
Ingredients
Directions
Brine
Place cucumbers in a jar or pail.
Cover with boiling water and add salt.
Cover tightly and repeat for three mornings.
Spice and pack
On the fourth morning, scald enough cider vinegar to cover cucumbers.
Add alum and horseradish to the vinegar.
Tie mustard, cloves, and cinnamon in a muslin bag and add to vinegar.
Slice cucumbers into ½ inch thick pieces.
Place cucumbers in glass jars and pour scalding vinegar over them.
Seal jars tightly and store.
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).
-
Clove + cinnamontop 1% of all pairsSmell alikestrongCooked together14,189 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
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).
-
Walnut + cinnamontop 6% of all pairsSmell alikestrongCooked together2,147 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumbers
- Provide the crisp body of the pickle, which firms and seasons as they soak in brine and vinegar.
- Cider vinegar
- Provides the sour acidity that preserves the cucumbers and gives the pickle its tang.
- Horseradish root
- Adds a sharp, pungent heat that flavours the vinegar.
- Mustard seeds
- Release a sharp, savoury flavour into the hot vinegar through the muslin bag.
The step that matters
Scalding the vinegar and pouring it over the cucumbers. The vinegar must be hot when poured so the cucumbers absorb its flavour and acidity quickly, and the sealed jars stay safe to store. Pouring cool vinegar gives a weaker flavour and less reliable preservation.
Swap the walnut
How well each one fits the dish's main ingredients (cucumber, cider, vinegar, horseradish, mustard, clove, cinnamon):
- Chickpeafits better
- Lentilsfits better
- Beansfits better
- Walnutthe original
Fit is the average pairing score against cucumber, cider, vinegar, horseradish, mustard, clove, cinnamon. 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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