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 says “a hot oven”. The 400°F in the steps is the modern equivalent, not the book's own figure.
Make the filling
Beat egg yolks until light.
Add water.
Mix sugar, flour, and salt together, then add the mixture to the egg mixture.
Place mixture in double boiler and cook until thick, stirring constantly.
Remove from heat and add butter immediately.
Cool until lukewarm.
Add grated orange rind and orange juice and mix well.
Spread mixture in baked pie shell.
Top and bake
Make meringue with 2 egg whites.
Spread meringue over top of pie.
Place pie in hot oven (400°F / 200°C).
Do not heat pie through.
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.
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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
- Yolks thicken the filling as they cook, and whites whip into the meringue topping.
- Flour
- Starch thickens the orange filling as it cooks in the double boiler.
- Sugar
- Sweetens the filling and helps stabilize the meringue.
- Orange juice
- Adds acidity and orange flavor to the filling.
- Butter
- Adds richness and smoothness to the cooked filling.
The step that matters
Do not heat pie through. The filling is already thick and cooked, so only the meringue needs browning. Overheating the custard can make it weep, curdle, or turn watery under the meringue.
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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Orange Bundt Cake349 recipes
Orange Cream Rice Pudding121 recipes
Orange Gelatin100 recipes
Orange Sherbet73 recipes