Why it works: Mustard and horseradish 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 ↓
Feacb. Mangoes.
Ingredients
Directions
Prepare
Select moderate-sized, unripe peaches and wipe them clean.
Soak the peaches in brine that can float an egg for three days.
Drain the peaches on a hair sieve.
Make the pickling liquid
Boil a quart of vinegar with whole white pepper, ginger, mace, salt, cayenne, and mustard seed.
Fill and pickle
Cut a round from the stalk end of each peach and fill with mustard seed, horseradish, garlic, and shallot.
Replace the cut pieces and secure with thread.
Pour the boiling vinegar mixture over the peaches and let them sit for two months before eating.
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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Mustard + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Horseradish + garlictop 5% of all pairsSmell alikestrongCooked together719 recipes
Shared aroma: coumarin (sweet, hay).
-
Mustard + garlictop 6% of all pairsSmell alikestrongCooked together4,053 recipes
Shared aroma: linalool (floral, citrus).
-
Ginger + garlictop 6% of all pairsSmell alikemoderateCooked together6,402 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Vinegar + mustardtop 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
What each ingredient does
- Peaches
- The fruit being pickled; it softens and absorbs the flavour of the brine and spices.
- Vinegar
- Provides acidity that preserves the peaches and gives them a sharp, tangy taste.
- Whole white pepper
- Adds sharp, warm aroma to the pickling liquid that infuses into the fruit.
- Ginger
- Adds a warm, aromatic spice note to the pickling liquid.
The step that matters
Pouring the boiling vinegar over the peaches. The vinegar must be at a full boil when poured so the spices release their flavour and the peaches are heated evenly, helping the liquid penetrate before sealing.
Swap the white pepper
How well each one fits the dish's main ingredients (peach, vinegar, ginger, mace, mustard, horseradish, garlic):
- Allspicefits better
- Clovefits better
- Turmericfits better
- White pepperthe original
Fit is the average pairing score against peach, vinegar, ginger, mace, mustard, horseradish, garlic. 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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