Why it works: Sugar and lemon 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 ↓
Barley Sugar
Ingredients
Directions
Cook the sugar
Boil the clarified sugar and lemon peel in a sugar pan until it reaches caramel height.
Shape the sticks
Prepare a lightly oiled marble slab.
Pour the sugar onto the slab in lengths according to the desired size of the sticks.
Twist the sugar sticks and let them cool completely.
Store
Store the cooled sticks for later use.
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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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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
- Clarified sugar
- Forms the glassy, brittle candy structure as the syrup cooks and cools.
- Lemon peel
- Infuses the hot sugar with citrus aroma.
The step that matters
Cooking the sugar to caramel height. How far the sugar cooks sets its final hardness once cooled. Stopping early leaves the sticks soft and sticky, while cooking too far darkens the sugar and gives it a bitter, burnt taste.
“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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