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 ↓
Orange Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the filling
In a bowl, mix together the sugar and flour.
Add the beaten egg yolks, orange juice, grated rind, water, and butter.
Cook the mixture in a double boiler until thick.
Remove from heat and let cool.
Assemble and bake
Pour the filling into baked pie pastry.
In a separate bowl, beat the egg whites until soft peaks form, then gradually add the sugar.
Spread the meringue on top of the pies.
Bake in a preheated oven at 350°F (175°C) until the meringue is lightly browned.
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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Orange + walnuttop 12% of all pairsSmell alikemoderateCooked together1,058 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Butter + walnuttop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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
- Egg yolks
- Thicken the filling and add richness as they set during cooking.
- Flour
- Thickens the filling so it sets firm when cooked and cooled.
- Egg whites
- Whip into a foam that forms the light, airy meringue topping.
- Orange juice
- Provides the tart citrus flavour that defines the filling.
The step that matters
Cook the filling until thick. Flour thickens only when the mixture is heated enough for its starch to swell. Stopping early leaves a runny filling, and a double boiler heats gently so the egg yolks don't scramble.
Swap the orange
How well each one fits the dish's main ingredients (sugar, flour, egg, butter, walnut):
- Raisinfits better
- Vanillafits better
- Figfits better
- Orangethe original
Fit is the average pairing score against sugar, flour, egg, butter, walnut. 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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