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 bowl, combine flour, egg, and a little water to form a stiff dough.
Knead the dough until it becomes pliable and can be stretched into strings.
Incorporate the butter into the dough until it is tough.
Roll out the dough to a thickness of about ¼ inch.
Fold the dough evenly, then roll it out again.
Repeat the folding process three times.
Shape and bake
Cut the dough into desired shapes and place on a baking sheet.
Brush the tops with a mixture of egg yolk and a little water, avoiding the sides.
Bake until golden, then remove the tops and scoop out the soft paste inside.
Place on kitchen paper to absorb excess butter.
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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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
- Provides the starch and gluten network that forms the dough's structure.
- Butter
- Forms separate layers in the dough that steam apart in the oven, creating flakiness.
- Egg
- Binds the stiff dough together and adds richness to its structure.
- Egg yolk
- Gives the brushed tops a glossy, golden browning when baked.
The step that matters
Folding and rolling the dough. Butter must stay in distinct cold layers between dough sheets. If the butter softens or melts into the dough, the layers merge and the pastry loses its flaky rise.
“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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