Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
To Preserve Oranges or Lemons in Jelly
Ingredients
Directions
Prepare the fruit
Cut a hole in the stalk of each orange or lemon, the size of a shilling. Scrape out the pulp without cutting the rind.
Tie each fruit in muslin.
Soak the muslin-wrapped fruit in spring water for 2 days, changing the water twice a day.
Boil the fruit in fresh water on a slow fire until tender.
Make the syrup
Combine 2 pounds of double-refined sugar, 1 pint of water, and the juice of the orange in a pot. Boil the mixture until it forms a syrup.
Clarify the syrup and let it cool.
Boil the fruit in the syrup for half an hour.
If the syrup is not clear, repeat the boiling daily until clear.
Make the apple jelly
Boil green pippins in water until the water tastes strong of apples.
Strain the boiled pippins through a jelly bag until clear.
Add 1 pound of double-refined sugar, the peel, and juice of a lemon to the strained water. Boil the mixture to a strong syrup.
Pot and seal
Drain the syrup from the fruit.
Place each orange or lemon hole-up in a jar. Pour the apple jelly over the fruit in the jar.
Cover with brandy paper.
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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Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Orange + sugartop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and lemon 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
- Oranges or lemons
- Provide the fruit that is softened and preserved whole in the syrup.
- Double-refined sugar
- Sweetens and, as it thickens into syrup, preserves the fruit and sets the jelly.
- Green pippins
- Supply natural pectin and apple flavour that help the apple jelly set.
The step that matters
Clarifying and repeated boiling of the syrup. Cloudy syrup means impurities remain in the sugar solution. Clarifying removes them, and repeated boiling until clear keeps the preserve bright and stable.
“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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