Why it works: Nutmeg and flour are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 18,623 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Make an Apple Tart
Ingredients
Directions
Prepare the apples
Scald the codlins, let them cool, then skin them.
Beat the pulp with a silver spoon until fine.
Make the custard
Mix the yolks and whites of the eggs and beat until well combined.
Add grated nutmeg and sugar to taste.
Melt the butter and beat it until it resembles thick cream.
Bake and serve
Cover a tin petty‑pan with puff pastry and pour in the mixture without covering it.
Bake for 15 minutes, then slip it out onto a dish and sprinkle with fine sugar.
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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Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Nutmeg + buttertop 16% of all pairsSmell alikemoderateCooked together24,377 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Codlins
- Provide the apple pulp that forms the body of the filling.
- Egg yolks
- Add richness and help the filling set when baked.
- Egg whites
- Add structure and lightness to the custard as it bakes.
- Butter
- Adds richness and a smooth, creamy texture to the filling.
- Puff pastry
- Forms the crisp, flaky base that holds the filling.
The step that matters
Beating the butter until it resembles thick cream. Butter beaten until thick and aerated blends evenly into the mixture; if it is too warm or melted, the filling can turn greasy and fail to set smoothly.
Swap the nutmeg
How well each one fits the dish's main ingredients (egg, sugar, butter, flour):
- Cinnamonfits about as well
- Nutmegthe original
- Jalapenofits less well
- Capersfits less well
Fit is the average pairing score against egg, sugar, butter, flour. 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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