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 ↓
Another Way to Make Lemon Pickle
Ingredients
Directions
Prepare
Slice the lemons and place them in a bowl.
Add the salt, horseradish, mustard flour, white pepper, cloves, nutmeg, mace, and cayenne pepper.
Pound the spices together and mix with the vinegar.
Cook and steep
Boil the mixture for 20 minutes.
Transfer to a jar and let it sit for 3 weeks, stirring daily.
Strain and store
Strain through a sieve and store in small bottles.
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 + nutmegtop 1% of all pairsSmell alikestrongCooked together8,686 recipes
Shared aroma: estragole (anise, licorice).
-
Nutmeg + macetop 4% of all pairsSmell alikemoderateCooked together6,557 recipes
Shared aroma: myristicin (spice, warm).
-
Lemon + nutmegtop 5% of all pairsSmell alikestrongCooked together11,318 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Clove + macetop 6% of all pairsSmell alikelowCooked together8,400 recipes
Shared aroma: methyleugenol (clove, spice).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lemons
- Supply the main citrus flavor and acidity that define the pickle.
- Coarse sea salt
- Draws out moisture and preserves the lemons during the long steeping.
- Vinegar
- Provides acidity that preserves the mixture and carries the spice flavors.
- Horseradish
- Adds sharp pungency that mellows as the pickle steeps.
- Mustard flour
- Contributes sharp, pungent mustard flavor and some body to the liquid.
The step that matters
Stirring daily during the 3-week steep. Regular stirring keeps the lemon slices and spices evenly in contact with the vinegar and salt, so flavor extracts uniformly and no part of the mixture is left unsoaked or spoiling at the surface.
Swap the white pepper
How well each one fits the dish's main ingredients (lemon, horseradish, mustard, flour, clove, nutmeg, mace):
- Allspicefits better
- Cinnamonfits better
- Winter savoryfits better
- White pepperthe original
Fit is the average pairing score against lemon, horseradish, mustard, flour, clove, nutmeg, mace. 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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