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 ↓
Peach Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Peel and pit the peaches, then cut them into small pieces.
Line a pie plate with the pie crust.
Assemble and bake
Place the peach pieces in the crust and sprinkle with ½ cup sugar.
Dot the top with small pieces of butter and sprinkle with flour.
Cover with the top crust and bake at 400°F (200°C) until golden.
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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Peach + buttertop 14% of all pairsSmell alikemoderateCooked together860 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Peach + sugartop 17% of all pairsSmell alikelowCooked together2,308 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Peaches
- Form the fruit filling and release juices that add moisture and flavor.
- Sugar
- Adds sweetness and helps draw juices out of the peaches.
- Flour
- Thickens the peach juices as they heat, so the filling holds together when sliced.
- Butter
- Adds richness and flavor, and helps the top crust brown.
- Pie crust
- Holds the filling in shape and bakes to a golden, crisp structure.
The step that matters
Bake until the filling is hot and juices are bubbling. Flour thickens juices only when heated enough to gelatinize its starch. A golden top alone does not guarantee the filling is set, so pulling the pie too early can leave a runny filling.
Swap the peach
How well each one fits the dish's main ingredients (sugar, butter, flour):
- Raisinfits better
- Vanillafits better
- Figfits about as well
- Peachthe original
Fit is the average pairing score against sugar, butter, flour. 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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