Why it works: Lemon and orange 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 ↓
Lemon Ice
Ingredients
Directions
Make the syrup
Boil the water and sugar together until the sugar dissolves completely.
Flavour and cool
Add the rinds of the lemon and orange, and the juices of the lemons and orange.
Stir well and let it cool.
Freeze and serve
Freeze the mixture until it reaches a slushy consistency.
Serve in chilled bowls.
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.
Photo for illustrative purposes only · Contact us to use it
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 + orangetop 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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Sugar + orangetop 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
- Sugar
- Adds sweetness and, dissolved in the water, lowers the freezing point so the ice stays soft and scoopable.
- Water
- Forms the liquid base that freezes into the ice's crystal structure.
- Lemon juice
- Adds sharp acidity that balances the sweetness and gives the ice its bright tang.
- Lemon and orange rind
- Adds aromatic citrus oils that flavour the mixture without adding much liquid.
The step that matters
Freezing to a slushy consistency. Dissolved sugar lowers the freezing point, so the mixture stays partly liquid. Freezing until just slushy, rather than solid, keeps the ice fine-grained and easy to spoon. Freezing too long makes it hard and icy.
“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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