Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Apple-pudding
Ingredients
Directions
Prepare
Butter a basin and line it with a suet crust.
Fill the basin with the chopped apples.
Add sugar to taste.
Stir in the lemon zest and lemon juice.
Cover with the crust and seal the edges tightly.
Flour a cloth and tie it securely over the pudding.
Steam
Place the basin in a pot of boiling water.
Boil for 1.5 to 2.5 hours, depending on size, ensuring the water remains boiling.
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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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Apple and sugar barely smell alike, yet cooks put them together in 16,478 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
- Flour
- Forms the structure of the suet crust that encloses the filling.
- Suet
- Adds fat to the crust, giving it a rich, tender texture as it cooks.
- Apples
- Provide the main filling, softening as they cook and adding moisture.
- Lemon
- Adds acidity and aroma that brighten the sweetness of the apples.
The step that matters
Keep the water boiling throughout. Steaming cooks the pudding through gentle, moist heat. If the water drops below a boil for long, the pudding cooks unevenly and the crust can turn heavy and doughy.
Swap the apple
How well each one fits the dish's main ingredients (flour, lemon, sugar):
- Raisinfits better
- Vanillafits better
- Orangefits better
- Applethe original
Fit is the average pairing score against flour, lemon, sugar. 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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