Why it works: Vanilla and banana are a kitchen classic. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,430 recipes. Both carry ethyl isobutyrate, which smells fruity, ethereal. The science ↓
Banana 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 custard
In a saucepan, mix milk, salt, and beaten egg yolks.
In a separate bowl, stir cornstarch into sugar, then add to the milk mixture when hot.
Cook until thickened, then remove from heat and stir in vanilla.
Assemble and bake
Pour the custard over the sliced bananas in a baked pie crust.
Beat the egg whites until stiff, gradually adding 1 tablespoon of sugar. Spread the meringue over the pie and brown in a 350°F (175°C) oven.
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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Vanilla + bananatop 1% of all pairsSmell alikemoderateCooked together1,430 recipes
Shared aroma: ethyl isobutyrate (fruity, ethereal).
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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Milk + bananatop 11% of all pairsSmell alikemoderateCooked together1,470 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 custard and add richness and a smooth texture when cooked.
- Cornstarch
- Thickens the milk mixture as it heats, giving the custard body so it holds its shape.
- Egg whites
- Whipped into a meringue that sets and browns in the oven, forming the pie's topping.
- Sugar
- Sweetens the custard and, in the meringue, stabilizes the whipped egg whites.
- Bananas
- Provide flavor and soft texture layered under the custard.
The step that matters
Cook the custard until thickened. Cornstarch only thickens fully when the mixture reaches a boil while stirring. Stopping early leaves the custard runny, so it will not hold its shape when the pie is sliced.
Swap the banana
How well each one fits the dish's main ingredients (milk, egg, sugar, vanilla):
- Figfits better
- Peachfits about as well
- Blueberryfits about as well
- Bananathe original
Fit is the average pairing score against milk, egg, sugar, vanilla. 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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