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 ↓
Puff Paste
Ingredients
Directions
Make the dough
Mix the flour with the egg yolk, cold water, and salt using your fingertips until moderately firm.
Place the mixture on a clean surface and put the butter in the center.
Fold the paste over the butter and set aside on ice for 15 minutes.
Laminate
Dust with flour and roll out to ½ inch thick, keeping it square at both ends.
Fold the dough in thirds and roll it out in the opposite direction.
Repeat the folding and rolling process, chilling again for 15 minutes.
Roll out and fold one last time.
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).
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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).
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
- Butter
- Forms solid layers that steam during baking, creating the flaky separation between dough sheets.
- Flour
- Provides the structure that holds the thin dough sheets together through rolling and folding.
- Egg yolk
- Adds richness and helps bind the dough, contributing tenderness and color.
- Cold water
- Hydrates the flour to form a workable dough that develops gluten during rolling.
The step that matters
Keeping the butter cold while rolling and folding. If the butter softens and merges into the dough, the layers blur instead of separating. Chilling between folds keeps the butter solid so steam can lift distinct flaky layers in the oven.
“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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