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 Oranges or Lemons Whole
Ingredients
Directions
Prepare the fruit
Scrape the rinds of the lemons or oranges with broken glass to your taste.
Soak the fruit in soft water for 10 days, changing the water daily.
Boil the fruit until tender, then transfer to cold water and let sit for 1 day.
Drain the fruit and measure the sugar, using twice the weight of the fruit.
Make the syrup and preserve
Clarify the sugar, then make a small hole in the top of each fruit.
Place the fruit in boiling syrup and boil for 30 minutes.
Transfer the fruit to a china bowl and let sit for 4 days.
Remove the fruit and boil the syrup until thick.
Return the fruit to the syrup and boil for another hour.
Divide the fruit and syrup into pots and let sit for 4 days before sealing.
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 or seville oranges
- The fruit is the main ingredient, preserved whole in sugar syrup.
- Sugar
- Sugar preserves the fruit and forms the thick syrup that sweetens and sets it.
The step that matters
Soaking in soft water changing daily. Soaking draws out the bitterness of the peel. Water is changed daily so the bitter compounds leached out do not build up and soak back into the fruit.
“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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