Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Orange Pie
Ingredients
Directions
Make the filling
Grate the orange and mix it with sugar, butter, egg yolks, and flour, then beat thoroughly.
Add the milk.
Pour into a pie crust.
Make the frosting
Beat the egg whites to a stiff froth, then add sugar to sweeten.
Bake and finish
Spread the frosting on top of the baked pie.
Return the pie to the oven until the frosting is light brown.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Eggs
- Yolks thicken the filling and whites whip into a light, stiff frosting.
- Orange
- Supplies the main flavour and aroma, along with a bright acidity.
- Sugar
- Sweetens the filling and the frosting, and helps the frosting brown.
- Flour
- Thickens the filling so it sets into a sliceable custard.
- Milk
- Adds moisture and a creamy body to the filling.
- Butter
- Adds fat for richness and a smoother texture in the filling.
The step that matters
Returning the pie to the oven. The frosting is mostly whipped egg white and sugar, which can darken quickly. Watch it closely so it turns light brown and does not scorch, since the sugar caramelises fast at high heat.
Swap the orange
How well each one fits the dish's main ingredients (sugar, milk, egg, flour, butter):
- Vanillafits better
- Raisinfits better
- Figfits better
- Orangethe original
Fit is the average pairing score against sugar, milk, egg, flour, butter. 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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