Why it works: Sugar and lemon are a kitchen classic. They rank in the top 10% of all ingredient pairs, and 53,530 recipes mention both. Both carry 2-nonenal, which smells fatty, green. The science ↓
The Dewey Cook Book
Ingredients
Directions
Prepare
Soak two small tablespoonfuls of gelatin in a little cold water.
Dissolve the gelatin in one and a half pints of boiling water.
Juice two large or three small lemons and grate the rind of one lemon.
Make the mixture
Combine three cups of sugar with a very small pinch of salt.
Add the lemon juice to the sugar mixture.
Add the dissolved gelatin to the mixture.
Add the pinch of salt to the mixture.
Freeze
Strain the mixture into a freezer container.
Freeze until set.
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. See the original page.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Sugar + lemontop 10% of all pairsAroma overlaplowMentioned together53,530 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon share little aroma chemistry, yet 53,530 recipes mention both: they likely 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
- Gelatin
- Sets the liquid into a smooth, scoopable frozen body that holds its shape.
- Sugar
- Sweetens the sherbet and lowers the freezing point, keeping it soft rather than rock-hard.
- Lemon juice
- Adds acidity and bright lemon flavor that balances the sweetness.
The step that matters
Dissolve the gelatin in boiling water. Gelatin must be fully dissolved before it is mixed in. Undissolved granules leave gritty or rubbery specks and uneven setting, so the water should be boiling and the gelatin stirred until clear.
“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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