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 ↓
French Puff-paste
Ingredients
Directions
Make the dough
Chop half the butter into the flour.
Stir the beaten egg yolk into the ice water and mix with the flour to form a stiff dough.
Laminate
Roll out the dough thinly, baste with one-third of the remaining butter, fold closely, and roll out again.
Repeat until all the butter is used up.
Roll very thin and refrigerate the last folded roll for 10-15 minutes before shaping the crust.
Finish
Wash with beaten egg while hot.
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 + 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).
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 gluten network that gives the dough its structure and layers.
- Butter
- Separate fat layers create steam pockets during baking, producing flakiness.
- Egg yolk
- Adds richness and helps bind the dough and promote even browning.
- Ice water
- Keeps the dough cold and hydrates the flour without warming the butter.
The step that matters
Keeping the butter and dough cold while rolling. If the butter softens and blends into the dough, the separate layers are lost and the pastry bakes dense instead of flaky. Chilling between folds keeps the fat in distinct sheets.
“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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