Why it works: Pepper and capsicum match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,571 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
To Pickle Lemons, and Limes
Ingredients
Directions
Prepare
Wipe the lemons clean and make four deep incisions in each, from the stalk to the blossom end, without dividing the fruit.
Stuff the lemons with salt and place them in a deep dish in a sunny spot for 7 to 10 days, turning and basting them with their own juice.
Pickle
Rub the lemons with turmeric and place them in a stone jar with garlic and onions.
Boil the vinegar with ginger, black pepper, and mustard seed, then pour it over the lemons.
Cover the jar with a plate and let it sit overnight.
Add capsicums or chilies, then tie a skin and thick paper over the jar.
Store
Store the pickles covered with vinegar; they will last for seven years.
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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Pepper + capsicumtop 2% of all pairsSmell alikestrongCooked together34,571 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Lemon + gingertop 5% of all pairsSmell alikestrongCooked together5,154 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Mustard + garlictop 6% of all pairsSmell alikestrongCooked together4,053 recipes
Shared aroma: linalool (floral, citrus).
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Ginger + garlictop 6% of all pairsSmell alikemoderateCooked together6,402 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lemons
- Provide the sour citrus flesh and fragrant rind that flavour the pickle.
- Coarse sea salt
- Draws out moisture from the lemons and helps preserve them.
- White wine vinegar
- Its acidity preserves the lemons and keeps them submerged and sharp.
- Mustard seed
- Adds a pungent, sharp aroma and flavour to the vinegar.
- Black pepper
- Adds a warm, mildly hot aroma to the pickling liquid.
The step that matters
Keeping the lemons covered with vinegar. Any lemon left exposed to air can mould or spoil, because the acid and salt only preserve fruit that stays fully submerged in the liquid.
Swap the ginger
How well each one fits the dish's main ingredients (lemon, white wine, vinegar, pepper, mustard, capsicum, garlic):
- Tarragonfits better
- Thymefits better
- Parsleyfits better
- Gingerthe original
Fit is the average pairing score against lemon, white wine, vinegar, pepper, mustard, capsicum, 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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