Why it works: Barley and lemon work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 484 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Barley Sugar,
Ingredients
Directions
Prepare
Soak the barley overnight in cold water.
Make the jelly
In the morning, boil the soaked barley gently in more water until it becomes a clear, thin jelly.
Finish and set
Add the sugar and lemon juice, then boil again until the mixture is clear and thick.
Pour the mixture into buttered plates or saucers and let it set hard.
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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Barley + lemontop 13% of all pairsSmell alikemoderateCooked together484 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Barley + buttertop 20% of all pairsSmell alikemoderateCooked together481 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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
- Barley
- Its starch and natural gum thicken the soaking water into a jelly that gives the candy body.
- Sugar
- Provides sweetness and, once boiled down, cools into a hard, glassy candy.
- Lemon juice
- Adds acidity that brightens the flavour and helps keep the sugar from crystallising.
The step that matters
Boiling the mixture until clear and thick. Sugar must be cooked long enough to lose most of its water. Too little boiling leaves a soft, sticky candy that will not set hard as it cools.
Swap the lemon
How well each one fits the dish's main ingredients (barley, sugar, butter):
- Vanillafits better
- Figfits better
- Raisinfits better
- Lemonthe original
Fit is the average pairing score against barley, sugar, butter. Candidates are from the same food group and used in at least 100 recipes.
“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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