Why it works: Flour and sugar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓
Banana Pie
Ingredients
Directions
The book says “a slow oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the crusts
Bake the pie crusts.
Slice the bananas and fill the crusts with them.
Make the filling
Beat the eggs until light, then mix in the flour, lemon juice, and sugar.
Slowly pour boiling water into the egg mixture while stirring until it begins to thicken.
Remove from heat and pour the mixture over the bananas.
Top and bake
Make a meringue with the egg whites and sugar, then spread it over the pie.
Bake in a moderate oven at 350°F (175°C) until the meringue is 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 + sugartop 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).
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Banana + lemontop 16% of all pairsSmell alikemoderateCooked together1,134 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Banana + flourtop 17% of all pairsSmell alikemoderateCooked together1,725 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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
- Set the filling when heated and add richness; whites build the meringue topping.
- Flour
- Starch that thickens the filling as it heats with the water.
- Bananas
- Provide the main fruit body, sweetness and soft texture in the filling.
- Sugar
- Sweetens the filling and helps stabilise the meringue.
- Lemon juice
- Adds acidity to brighten the filling and slows browning of the sliced bananas.
The step that matters
Pouring boiling water into the egg mixture. Adding hot liquid to eggs too quickly can scramble them. A slow pour with constant stirring warms the eggs gently, so the starch thickens the filling smoothly.
Swap the banana
How well each one fits the dish's main ingredients (egg, flour, lemon, sugar):
- Raisinfits better
- Vanillafits better
- Orangefits better
- Bananathe original
Fit is the average pairing score against egg, flour, lemon, sugar. 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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