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 ↓
Lemonade Syrup
Ingredients
Directions
Make the syrup
Infuse the thin rinds of the lemons in the cold water for a time.
Add the sugar and stir over heat until it boils for 1 minute.
Gradually add the strained lemon juice and simmer without boiling again.
Finish
Use the whole rinds with the sugar for a stronger flavor.
Set the vessel in ice if it needs to be cooled quickly.
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.
-
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
- Lemon rinds
- Their oils supply the strong lemon aroma and flavor that the syrup carries.
- Lemon juice
- Provides the sharp acidity that gives the syrup its tartness.
- Granulated sugar
- Adds sweetness and body, balancing the acidity of the lemon juice.
The step that matters
Add the lemon juice without boiling. Prolonged or vigorous heat dulls the bright, fresh flavor of citrus and can make it taste flat or bitter. Simmering gently after adding the strained juice keeps the flavor fresh.
“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.
You might also like
Lemon Whey33 recipes
Lemon Wine31 recipes
Lemon Squash10 recipes
Lemon Essence8 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.