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 ↓
Crabapple Jelly
Ingredients
Directions
Prepare
Wash and cut crabapples into quarters.
Place the crabapples in a kettle and cover with water. Cook slowly for about 2 hours.
Drain
Put the cooked crabapples in a cheesecloth bag and drain overnight.
Make the jelly
Measure the juice and add 1 scant cup of sugar for each cup of juice.
Bring the juice to a boil, then add the sugar and lemon juice.
Cook for about 30 minutes.
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
- Crabapples
- Provide natural pectin and tart flavor that help the jelly set.
- Granulated sugar
- Adds sweetness and helps the pectin form a firm gel.
- Lemon juice
- Adds acidity that supports gelling and brightens the flavor.
The step that matters
Boil the juice with sugar and lemon juice, then cook about 30 minutes. Pectin, sugar and acid must reach a full boil and cook long enough to form a gel. Undercooked jelly stays runny, while overcooking can make it stiff and dull in flavor.
“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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