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 Peppers
Ingredients
Directions
Cut the stems off the peppers in a round circle and set them aside.
Mix finely chopped cabbage, horseradish, mustard seed, and coarse sea salt.
Wash the peppers in cold water, then fill each pepper with the mixture.
Replace the cut-out piece of the stem and tie it with coarse thread.
Pack the peppers in stone jars and fill with cold, sharp vinegar.
Let them sit for two weeks before using.
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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Cabbage + horseradishtop 2% of all pairsSmell alikestrongCooked together481 recipes
Shared aroma: coumarin (sweet, hay).
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Cabbage + mustardtop 3% of all pairsSmell alikestrongCooked together1,645 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + cabbagetop 5% of all pairsSmell alikemoderateCooked together4,081 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the cabbage
How well each one fits the dish's main ingredients (pepper, horseradish, mustard, vinegar):
- Radishfits better
- Shallotfits about as well
- Broccolifits about as well
- Cabbagethe original
Fit is the average pairing score against pepper, horseradish, mustard, vinegar. Candidates are from the same food group and used in at least 100 recipes.
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