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 Cake
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the batter
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the egg yolks, water, and vanilla extract, mixing well.
In a separate bowl, beat the egg whites until stiff peaks form.
Gently fold the beaten egg whites into the mixture.
Sift in the flour, cream of tartar, and salt, and fold until just combined.
Bake and fill
Pour the batter into prepared cake pans and bake for 25-30 minutes or until a toothpick comes out clean.
For the filling, beat together the sliced bananas, powdered sugar, and the whites of two eggs until smooth.
Spread the filling on the cooled cake and top with additional banana slices.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, 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
- Butter
- Creaming with sugar traps air, giving the cake a light, tender crumb and rich flavour.
- Egg whites
- Whipped to stiff peaks, they add lift and an airy structure to the batter.
- Egg yolks
- Add richness, moisture and tenderness, and help bind the batter.
- All-purpose flour
- Provides the structure that sets the cake as it bakes.
- Sugar
- Sweetens the cake and, creamed with butter, helps create a fine, soft texture.
- Bananas
- Add moisture, sweetness and banana flavour to the cake and filling.
The step that matters
Folding in the beaten egg whites. Whipped egg whites hold the air that lifts the cake. Stirring them in vigorously knocks that air out, so fold gently and stop once no white streaks remain.
Swap the banana
How well each one fits the dish's main ingredients (butter, sugar, egg, vanilla, flour, cream):
- Raisinfits better
- Figfits about as well
- Coconutfits about as well
- Bananathe original
Fit is the average pairing score against butter, sugar, egg, vanilla, flour, cream. 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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