Why it works: Flour and butter 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 ↓
Delicious Prune Pie
Ingredients
Directions
Make the crust
Mix flour and butter.
Add cold water as needed.
Roll out the crust.
Dot the crust with 1 tablespoon of butter.
Fold the crust.
Chill the crust in the refrigerator for 30 minutes.
Make the filling and assemble
Scald the prunes.
Boil the prunes with sugar and fruit juice until tender.
Remove the pits from the prunes.
Mix in chocolate and additional juice.
Fill the crust with the prune mixture.
Cover with narrow strips of dough.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + chocolatetop 16% of all pairsSmell alikemoderateCooked together10,543 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Flour and butter 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
- All-purpose flour
- Forms the gluten network that gives the crust its structure.
- Butter
- Creates flaky layers in the crust as it melts and steams during baking.
- Prunes
- Provide the main body, sweetness and moisture of the filling as they soften.
- Sugar
- Sweetens the prune filling and helps it turn glossy and thick.
- Fruit juice
- Adds moisture and fruity sweetness, helping the prunes cook until tender.
- Chocolate
- Adds richness and a deep, slightly bitter flavor to the prune filling.
The step that matters
Chill the crust in the refrigerator for 30 minutes. Chilling firms the butter before baking. Cold fat creates separate flaky layers, while warm dough can soften, spread and bake up tough.
“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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