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 ↓
Peach Pickle
Ingredients
Directions
Prepare the peaches
Peel the peaches and pack them in coarse sea salt. Let them stand for four days and nights.
Remove the peaches, brush off the salt, and dry them in dishes for three days.
Soak the peaches in water for twelve hours.
Pack and pour
Layer the peaches in a jar, sprinkling spices between each layer.
In a bowl, mix the vinegar with black mustard seed, white mustard seed, mustard powder, cayenne pepper, mace, cinnamon, ginger, horseradish, garlic, onions, black pepper, and turmeric.
Pour the spice mixture over the layered peaches.
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.
-
Mustard + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Cinnamon + gingertop 1% of all pairsSmell alikestrongCooked together6,380 recipes
Shared aroma: estragole (anise, licorice).
-
Cinnamon + horseradishtop 6% of all pairsSmell alikestrongCooked together515 recipes
Shared aroma: coumarin (sweet, hay).
-
Peach + cinnamontop 6% of all pairsSmell alikestrongCooked together625 recipes
Shared aroma: methyl cinnamate (strawberry).
-
Mustard + cinnamontop 7% of all pairsSmell alikestrongCooked together1,581 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Peaches
- Form the main body of the pickle, absorbing salt, spice and vinegar flavour as they cure.
- Vinegar
- Provides the sharp acidity that preserves the fruit and gives the pickle its tang.
- Black mustard seed
- Adds sharp, pungent heat and a crisp bite when left whole in the pickle.
- White mustard seed
- Contributes mild pungency and texture alongside the black mustard seed.
- Onions
- Add savoury bulk and sweetness that softens as the pickle matures.
The step that matters
Drying the salted peaches. Salt draws water out of the fruit, so the peaches must be brushed clean and dried well before packing. Residual surface moisture or salt can dilute the vinegar, spoil the pickle, or leave it too salty.
Swap the mace
How well each one fits the dish's main ingredients (peach, vinegar, mustard, pepper, cinnamon, ginger, horseradish):
- Allspicefits better
- Clovefits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against peach, vinegar, mustard, pepper, cinnamon, ginger, horseradish. 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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