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
In a basin, combine the flour and salt.
Mix the lemon juice with the cold water and gradually pour it into the flour.
Knead the mixture for 10 minutes until it reaches the same consistency as the butter.
Enclose the butter
Roll out the dough into a long, thin strip about ½ inch thick.
Press the butter in a cloth to absorb moisture.
Place the butter in the center of the pastry.
Fold the sides of the pastry over the butter so it is completely enclosed.
Roll, fold and chill
Turn the pastry half-way around with the rough edges facing you.
Roll out carefully, always rolling forward, then fold in three.
Chill the pastry for 10 to 15 minutes.
Repeat the rolling and chilling process seven times for best results.
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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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).
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
- Flour
- Forms the gluten network that gives the pastry its structure and holds the layers.
- Butter
- Stays solid between layers and turns to steam in the oven, lifting the dough into flaky layers.
- Lemon juice
- Adds acidity that softens gluten, keeping the dough easier to roll without toughening.
The step that matters
Keeping the butter enclosed and cold between folds. If the butter softens or breaks through the dough, it blends in instead of forming separate layers. Chilling between rolls keeps the butter firm so the layers stay distinct and the pastry rises flaky.
Swap the lemon
How well each one fits the dish's main ingredients (flour, butter):
- Raisinfits better
- Vanillafits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against flour, 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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