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 ↓
French Puff Paste
Ingredients
Directions
Make the dough
Combine ½ cup drippings or butter with 1 pound sifted flour in a bowl.
Stir the yolk of 1 egg into a scant 1 cup ice water.
Mix the egg-water mixture into the flour to form a dough.
Laminate
Roll the dough very thin.
Baste the dough with ½ cup or more butter.
Fold the dough closely.
Roll the dough again.
Repeat folding and rolling until all fat is used, about 1½ cups total.
Chill
Chill the dough for at least 1 hour in a very cold place before rolling out.
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).
-
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
- Flour
- Forms the gluten network that gives the dough its structure and layers.
- Butter
- Forms separate fat layers that create flakiness as the dough is rolled and folded.
- Ice water
- Keeps the dough cold and hydrates the flour without melting the fat early.
- Egg yolk
- Adds richness and helps bind the dough together.
The step that matters
Keeping the fat cold during folding. If the butter softens and blends into the dough instead of staying in distinct sheets, the layers fail to separate and the pastry turns dense rather than flaky. Chilling between rounds keeps the fat solid.
“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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