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
Prepare the butter
Fill a bowl with cold water and wash the butter until light and waxy.
Divide the butter in half and chill one half in cold water.
Make the dough
Mix salt, sugar, baking powder, and flour together.
Rub one sheet of butter into the flour mixture.
Whip the egg with a little ice water and add to the mixture.
Add enough ice water to form a medium stiff dough.
Lightly flour a board and turn the dough onto it.
Roll out the dough quickly and lightly to about 1/4 inch thick.
Laminate and chill
Drain the remaining butter and break it into small pieces, spreading over half the dough.
Sprinkle lightly with flour, fold the unbuttered half over the butter, and fold again.
Roll out to about 1/3 inch thick, folding in the sides and ends without letting edges touch.
Repeat this process four times for pies or six times for pastries.
Use minimal flour while rolling to avoid ruining the dough.
Chill the rolled dough on ice for at least one hour before using.
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
- All-purpose flour
- Forms the structure of the dough once mixed with liquid.
- Unsalted butter
- Forms separate layers that create flakiness when the dough is folded and baked.
- Baking powder
- Releases gas to help the pastry rise and lighten.
- Egg
- Adds richness and helps bind the dough.
The step that matters
Keeping the butter cold and in distinct layers. If the butter softens or melts into the dough, it blends into the flour instead of forming separate layers, so the pastry loses its flakiness. Cold, firm butter stays in sheets that puff apart as steam forms 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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