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 ↓
Paste, Plain Puff
Ingredients
Directions
Make the dough
Place the flour on a clean surface and add a little salt.
Chop the butter and lard, then add them to the flour.
Make a hole in the center and add the lemon juice, egg, and enough water to form a stiff paste.
Mix the ingredients well.
Laminate the pastry
Roll out the dough and fold it in half.
Repeat the rolling and folding process three times to prepare the paste for 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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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
- Flour
- Forms the structure of the dough once mixed with water.
- Butter
- Creates layers and flakiness as it stays solid within the dough during rolling.
- Lard
- Adds tenderness and flakiness by keeping layers separate during rolling.
- Egg
- Adds richness and helps bind the dough together.
- Lemon juice
- Adds a small amount of acidity that tenderizes the gluten in the dough.
The step that matters
Keeping the fats cold and distinct during folding. If the butter and lard soften and blend into the flour, the dough loses its layers and bakes flat instead of flaky. Working the dough while cool keeps the fat in separate pieces that create steam and lift.
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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