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 ↓
Pickled English Walnuts
Ingredients
Directions
Soak the walnuts in strong saltwater for 12 days, changing the water several times.
After 12 days, soak the walnuts in fresh water briefly, then dry them and place them in the sun until they turn black.
Soak the walnuts in common vinegar for several weeks.
Spice the vinegar with allspice, cloves, horseradish, prepared mustard, red pepper, garlic, and a little coarse sea salt.
Boil the spiced vinegar and pour it over the walnuts while hot.
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).
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Allspice + clovetop 1% of all pairsSmell alikestrongCooked together7,874 recipes
Shared aroma: estragole (anise, licorice).
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Allspice + mustardtop 2% of all pairsSmell alikestrongCooked together1,928 recipes
Shared aroma: methyleugenol (clove, spice).
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Allspice + horseradishtop 4% of all pairsSmell alikestrongCooked together654 recipes
Shared aroma: coumarin (sweet, hay).
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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the walnut
How well each one fits the dish's main ingredients (vinegar, allspice, clove, horseradish, mustard, pepper, garlic):
- Lentilsfits better
- Chickpeafits better
- Beansfits better
- Walnutthe original
Fit is the average pairing score against vinegar, allspice, clove, horseradish, mustard, pepper, garlic. Candidates are from the same food group and used in at least 100 recipes.
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