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 ↓
Pie-crust
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Cream the butter (or fat) with salt and brown sugar.
Sift in the flour and rub until it resembles sand.
Add the egg yolk, brandy, and ice water; mix lightly.
Knead minimally and roll out thinly.
Bake
Grease the pie plates well before use.
Bake in a hot oven at 400°F (200°C).
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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + brandytop 15% of all pairsSmell alikemoderateCooked together5,127 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 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 or rendered suet
- Coats flour particles and creates flaky layers as the fat melts during baking.
- All-purpose flour
- Provides the structure of the crust once it is mixed with liquid and baked.
- Egg yolk
- Adds richness and helps bind the dough together.
- Ice water
- Hydrates the flour while keeping the fat cold, so the dough stays tender and flaky.
- Brandy
- Adds aroma and flavor, and its alcohol evaporates during baking, leaving the crust tender.
The step that matters
Mix lightly after adding the liquids. Overmixing develops gluten in the flour, which makes the crust tough instead of tender. Keeping the fat in visible pieces and the dough cold helps create flaky layers.
“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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