Why it works: Butter and flour 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
Prepare the butter
Knead the butter by hand until all buttermilk or water is removed.
Wet your hands and the moulding board with cold water.
Ensure the butter is free of cracks to avoid flaky pastry.
Wrap the butter in a floured towel and place it in a cool place.
Make the dough
Mix flour, egg yolk, 1 teaspoon butter, lemon juice, and salt.
Add cold water to form a soft paste like bread dough.
Knead the dough for about 5 minutes until it pulls away from your hands.
Roll the dough into a circle the size of a large dinner plate.
Laminate and fold
Place the butter in the center, fold the sides over, and roll into a strip three times as long as it is wide.
Fold one third over the middle, then the other third over that to create three layers.
Roll again into a strip three times as long as it is wide.
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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Butter + flourtop 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).
Butter and flour 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
- Butter
- Forms the separate layers that puff apart into flakiness when the dough is folded and rolled.
- Flour
- Provides the structure that holds the dough together and gives it elasticity.
- Egg yolk
- Adds richness and helps bind the dough into a smooth, pliable paste.
- Lemon juice
- Adds acidity that tenderises the gluten and keeps the dough easier to roll.
The step that matters
Keep the butter cold and free of cracks. If the butter softens or breaks through the dough, it blends into the layers instead of staying separate, so the pastry loses its flakiness.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, egg):
- Raisinfits better
- Vanillafits better
- Lemonthe original
- Coconutfits about as well
Fit is the average pairing score against butter, flour, 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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