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 ↓
A Good Puff-paste
Ingredients
Directions
Prepare
Chill the butter, flour, chopping bowl, knife, pastry board, and rolling pin until ice-cold.
Chop the butter and flour together until the butter is in bits no larger than a pea.
Pour in the ice water and mix with the knife to form a paste. Do not use your hands.
Laminate
Turn the mixture onto a well-floured pastry board and roll it into a sheet about ½ inch thick.
Dredge lightly with flour, then fold into three thicknesses.
Turn the roll lengthwise toward you and roll out again.
Repeat the dredging, folding, and rolling two more times.
Fold lightly and place on a dish.
Chill and portion
Chill until thoroughly cold, preferably overnight.
When ready to make pies, divide the paste into pieces and roll each piece separately.
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).
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
- Butter
- Forms the layers of solid fat that separate the dough sheets, creating flakiness when baked.
- Flour
- Provides the structure that holds the dough sheets together between the butter layers.
- Ice water
- Hydrates the flour to form a cohesive paste while keeping the butter cold and solid.
The step that matters
Keeping the butter in bits and the dough cold. If the butter softens or melts into the flour, the layers merge and the pastry loses its flakiness. Cold butter turns to steam in the oven, lifting the layers apart.
“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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