Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Ordinary Apple Tart
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the pastry
Preheat the oven to 350°F (175°C).
Prepare the pastry by mixing flour, salt, and butter until crumbly.
Add cold water gradually to form a dough.
Roll out the dough and line a tart pan.
Fill and bake
Peel and slice the apples, then arrange them in the crust.
Sprinkle sugar over the apples.
Bake for 30-40 minutes until the crust is golden and apples are tender.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Apples
- Provide the bulk of the filling and soften into tender, sweet fruit when baked.
- Butter
- Cuts into the flour to create a crumbly texture and adds richness to the crust.
- Flour
- Forms the structure of the pastry dough once mixed with water.
- Sugar
- Sweetens the apples and helps them caramelize and brown slightly at the edges.
The step that matters
Add cold water gradually to form the dough. Adding too much water or warm water can develop gluten and toughen the crust, while cold, gradual water keeps butter pieces intact so the pastry stays tender and flaky.
Swap the apple
How well each one fits the dish's main ingredients (sugar, butter, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Applethe original
Fit is the average pairing score against 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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