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 ↓
Linseed Cough Syrup
Ingredients
Directions
Wash the linseed.
Combine linseed, liquorice root, and Italian juice in 3 pints of water in a pot.
Bring to a boil, then reduce heat to simmer for 3-4 hours, stirring occasionally.
Strain the mixture through a sieve into a clean pan.
Add the juice of the lemon and sugar-candy or honey, and simmer for 15 minutes.
Serve warm, taking half a teacupful 3-4 times a day.
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
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