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 ↓
Puff Paste
Ingredients
Directions
Make the dough
Mix the flour with a lump of butter the size of an egg and the egg to form a very stiff paste, adding cold water as needed.
Divide the butter into six equal parts.
Laminate
Roll out the paste and spread one part of the butter on it, dredging with flour.
Repeat until all the butter is incorporated.
Chill the paste on ice for 15-20 minutes.
Roll out the paste three more times, each time in the opposite direction, and chill again until cold.
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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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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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
- Flour
- Forms the stiff paste structure that holds the layers together during rolling.
- Butter
- Forms separate fat layers between dough sheets that create flakiness when baked.
- Egg
- Adds richness and helps bind the stiff paste.
The step that matters
Keeping the butter and dough cold while rolling. If the butter softens and blends into the dough instead of staying in distinct layers, the pastry loses its flaky separation. Chilling between rolls keeps the fat solid so the layers stay intact.
“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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