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 ↓
To Make Puff Paste
Ingredients
Directions
Prepare
Mold the butter and place it in cold water.
Sift the flour.
Rub half of the butter lightly into the flour.
Make the dough
Mix the flour with cold spring water to form a dough.
Roll out the dough.
Fold in the butter
Add half of the remaining butter in pieces.
Fold the dough.
Roll it out again.
Add the rest of the butter.
Lightly sprinkle flour on the dough.
Fold the dough together.
Refrigerate.
Roll it out twice more.
Finish
Add the beaten egg white to the mixing water.
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 the separate layers that make the pastry flaky.
- Flour
- Forms the gluten network that gives the dough its structure.
The step that matters
Keeping the butter cold and in distinct pieces. If the butter softens and blends into the dough, it cannot form the separate layers that make puff pastry rise and flake.
“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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