Why it works: Lemon and apple are a kitchen classic. They rank in the top 14% of all ingredient pairs, and 7,551 recipes mention both. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Jellied Apples
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Bake the apples
Peel the lemon, slice it, and remove the seeds.
Lay the lemon slices in a shallow pan and place an apple on each slice.
Fill the pan half full with water and bake at 350°F (175°C) until the apples are tender.
Transfer the apples to a glass dish.
Make the syrup and serve
In the same pan, add the water and sugar, and boil until it jells.
Place a slice of lemon on each apple.
Pour the syrup over the apples.
Let cool before serving.
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 aroma chemistry they share, and how many recipes mention both.
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Lemon + appletop 14% of all pairsAroma overlapmoderateMentioned together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Apple + sugartop 18% of all pairsAroma overlaplowMentioned together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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Lemon + sugartop 18% of all pairsAroma overlaplowMentioned together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Apple and sugar share little aroma chemistry, yet 16,478 recipes mention both: they likely 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
- Apples
- Provide the main body of the dish, softening into tender flesh when baked.
- Lemon
- Adds acidity and aroma, and its natural pectin helps the syrup set.
- Sugar
- Adds sweetness and, when boiled, thickens the syrup so it can set into a jelly.
The step that matters
Boiling the syrup until it jells. The syrup must reach a concentration where sugar, acid and pectin allow it to set. Stopping too early leaves it runny, while boiling too long can make it stiff and sticky.
Flavor stand-ins for the lemon
How well each one fits the dish's main ingredients (apple, sugar):
- Pearbetter flavor fit
- Vanillabetter flavor fit
- Apricotbetter flavor fit
- Lemonthe original
Fit is the average pairing score against apple, sugar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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