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.
Prepare
Preheat your oven to 350°F (175°C).
Prepare the pastry and bake it until lightly golden.
Make the filling
In a bowl, combine the eggs, sugar, orange juice, flour, butter, and water.
Cook the mixture in a double boiler until thickened.
Top and bake
Beat the egg whites until frothy, then add the tablespoon of sugar and continue beating until stiff peaks form.
Spread the beaten egg whites over the orange filling and bake until 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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Thicken the filling when cooked and provide structure for the filling and the meringue topping.
- Sugar
- Sweetens the filling and, beaten with the egg whites, helps stabilise the meringue topping.
- Orange juice
- Supplies the citrus flavour and acidity that gives the filling its character.
- Flour
- Thickens the filling so it sets firmly when cooked in the double boiler.
- Butter
- Adds richness and a smooth, tender texture to the filling.
The step that matters
Cook the filling in the double boiler until thickened. Egg-thickened fillings set through gentle heat; too much heat can curdle the eggs and make the custard grainy, while too little leaves it runny. Stop once it coats a spoon.
Swap the orange
How well each one fits the dish's main ingredients (egg, sugar, flour, butter):
- Raisinfits better
- Vanillafits better
- Figfits better
- Orangethe original
Fit is the average pairing score against egg, sugar, 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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