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
Make the dough
Sift the flour into a bowl and add a pinch of coarse sea salt.
Cut the butter into small pieces and add it to the flour, mixing until crumbly.
Add the eggs and lemon juice, mixing until a dough forms.
Laminate and fold
Roll the dough into a square about 1 inch thick.
Place the butter in the center and fold the sides over to completely enclose it.
Roll the dough into a long sheet, about 3 feet long, and fold it into thirds.
Chill for 10 minutes, then repeat the rolling and folding process for a total of 6 to 7 turns.
Rest the dough between turns if time allows for better texture.
Rest and use
Use immediately or refrigerate for a few hours 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 + 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
- All-purpose flour
- Forms the gluten network that gives the dough its structure and holds the layers.
- Unsalted butter
- Forms separate layers that create steam and lift, producing the flaky texture.
- Large eggs
- Add moisture and protein that bind the dough together.
- Lemon juice
- Adds acidity that helps keep the dough tender and balanced.
The step that matters
Keeping the butter layers intact during folding. If the butter warms and blends into the dough, it cannot form separate layers, so the pastry loses its flakiness. Chilling between turns keeps the butter firm and the layers distinct.
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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