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 ↓
To PickLE Lemons with the Peel on
Ingredients
Directions
Prepare the lemons
Prepare a brine that will float an egg and soak the lemons in it for 6 days, stirring daily.
Boil the lemons in 2 quarts of boiling water for 15 minutes.
Remove the lemons and let them dry on a cloth until cold.
Pickle and store
Boil enough vinegar with the spices to cover the lemons.
Pack the lemons in a jar and pour the hot vinegar over them.
Seal the jar tightly and store for about 12 months 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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Mustard + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Clove + gingertop 1% of all pairsSmell alikestrongCooked together6,038 recipes
Shared aroma: estragole (anise, licorice).
-
Lemon + gingertop 5% of all pairsSmell alikestrongCooked together5,154 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lemons
- Provide the main body and sour citrus flavour that the pickling liquid carries.
- Vinegar
- Acts as the pickling liquid that preserves the lemons and gives them their sharp acidity.
- Cloves
- Add warm, aromatic spice flavour to the pickling vinegar.
- Mustard-seed
- Adds pungent, sharp aroma to the spiced vinegar.
The step that matters
Seal the jar tightly and store for about 12 months. Vinegar and salt brine slowly soften the lemon peel and mellow the sharp acidity over time. A loose seal lets air in and can spoil the jar before the flavour has developed.
Swap the white pepper
How well each one fits the dish's main ingredients (lemon, clove, ginger, mace, mustard, horseradish, garlic):
- Allspicefits better
- Turmericfits better
- Cinnamonfits better
- White pepperthe original
Fit is the average pairing score against lemon, clove, 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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