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
On a clean surface, place the flour and make a well in the center.
Add the egg yolk, lemon juice, and salt into the well.
Mix with cold water to form a soft, flexible paste, handling it as little as possible.
Laminate and rest
Remove excess moisture from the butter and roll out the paste.
Place the butter in the center and fold the edges of the paste over to cover it.
Roll out the paste to ¼ inch thick, then fold it into thirds and roll again.
Repeat the rolling and folding process two more times.
Flour a baking sheet, place the paste on it, and chill for 30 minutes.
Roll out twice more, turning as before, and chill for an additional 15 minutes.
Give it two more rolls, totaling seven rolls, and it is ready to use.
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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Lemon + buttertop 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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Egg + buttertop 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 paste its structure.
- Butter
- Forms separate layers that puff into flaky sheets as steam is released during baking.
- Cold water
- Hydrates the flour into a workable paste while keeping the butter from melting.
- Egg yolk
- Adds richness and tenderness to the paste.
- Lemon juice
- Adds acidity that slightly tightens gluten, making the dough easier to roll.
The step that matters
Keep the butter and dough cold while rolling and folding. If the butter softens and blends into the paste, the separate layers are lost and the pastry will not puff into flaky sheets. Chilling between rolls keeps the butter firm and the layers distinct.
Swap the lemon
How well each one fits the dish's main ingredients (flour, egg, butter):
- Raisinfits better
- Vanillafits better
- Lemonthe original
- Coconutfits about as well
Fit is the average pairing score against flour, egg, butter. 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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