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 Custard
Ingredients
Directions
Make the custard
In a saucepan, heat the milk until it begins to boil.
In a bowl, beat the egg and sugar together until well combined.
Stir in the vanilla and salt.
Remove the saucepan from heat and gradually stir in the egg mixture.
Cool and finish
Allow the mixture to cool.
Fold in the sliced bananas.
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
- Milk
- Forms the liquid base and gives the custard its creamy body.
- Egg
- Its proteins set when gently heated, thickening the custard and giving it structure.
- Sugar
- Adds sweetness and helps balance the flavour of the custard.
- Bananas
- Add fruity flavour, sweetness and soft texture to the finished custard.
- Vanilla extract
- Adds aroma that rounds out the flavour of the custard.
The step that matters
Gradually stir the egg mixture into the milk off the heat. Egg proteins begin to set around cooking temperature, so adding the egg mixture to very hot milk all at once can scramble it. Adding it gradually, off the heat, tempers the egg and keeps the custard smooth.
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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