Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
To Preserve Lemons
Ingredients
Directions
Brine the rinds
Squeeze the juice from the lemons and place the rinds in a brine that will float an egg.
Let the rinds soak in the brine for 1 to 6 weeks.
Soften the rinds
Remove the rinds from the brine, weigh them, and cut into slices.
Soak the slices in fresh cold water for 24 hours.
Place the slices in a pot with cold water and boil until tender.
Make the syrup
For the syrup, use equal parts sugar and water (½ pint for each pound of sugar) and cook until thick and rich.
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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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lemons
- Their rinds supply the main aroma and bitter-sour flavour, and the juice adds acidity.
- Sugar
- Adds sweetness and, cooked into the syrup, gives a thick, rich texture.
The step that matters
Testing the brine with an egg. The brine must be strong enough that an egg floats. Too little salt lets the rinds spoil during the long soak, while the right concentration preserves them safely.
“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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