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 Pastry
Ingredients
Directions
Prepare the dough
Sift the flour to remove lumps.
Wrap the butter in a clean cloth and squeeze out moisture.
In a bowl, make a well in the flour, add salt, lemon juice, and egg yolk.
Gradually add cold water and mix with fingers to form a soft, elastic dough.
Knead until smooth, then roll out to ¼ inch thick.
Laminate
Press the butter to half the size of the rolled pastry and place it on the dough, ¼ inch from the edge.
Fold the pastry over the butter and lightly press the edges together.
Roll out again, ensuring the butter doesn't surface, then fold into thirds.
Let it rest in a cool place for 15 minutes.
Repeat the rolling and folding process, resting for 15 minutes each time, until done seven times.
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 + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 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
- Fine flour
- Forms the gluten network that gives the dough its structure and elasticity.
- Butter
- Forms separate layers that puff into flaky sheets when the pastry bakes.
- Egg yolk
- Adds richness and helps bind the dough together.
- Lemon juice
- Adds a little acidity that helps keep the dough tender.
The step that matters
Keeping the butter inside the dough during rolling. If the butter breaks through or softens into the dough, the layers merge and the pastry loses its flakiness. Resting the dough in a cool place keeps the butter firm between folds.
Swap the lemon
How well each one fits the dish's main ingredients (flour, butter, egg):
- Raisinfits better
- Vanillafits better
- Lemonthe original
- Coconutfits about as well
Fit is the average pairing score against flour, butter, egg. Candidates are from the same food group and used in at least 100 recipes.
“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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