Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Caramel Banana Custard
Ingredients
Directions
Make the custard base
Scald the milk in a saucepan.
Beat the egg yolks with the sugar until light.
Pour the hot milk onto the egg yolk mixture, stirring constantly.
Add the butter and mix well.
Cook and serve
Cook the mixture in a double boiler until thickened.
Slice the bananas and fold them into the custard before serving.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Butter + bananatop 15% of all pairsSmell alikemoderateCooked together1,536 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Their proteins set on gentle heat, thickening the custard into a smooth, spoonable texture.
- Milk
- Forms the liquid base that carries the flavour and gives the custard its body.
- Sugar
- Adds sweetness and helps the beaten yolks become light and smooth.
- Butter
- Adds fat for richer flavour and a silkier mouthfeel.
- Bananas
- Add fruity sweetness and aroma that flavour the finished custard.
The step that matters
Cooking the custard until thickened. Egg yolks thicken as their proteins set with heat, but if the mixture gets too hot or cooks too fast, the proteins tighten and curdle. A double boiler applies gentle, even heat to prevent this.
Swap the banana
How well each one fits the dish's main ingredients (milk, egg, sugar, butter):
- Vanillafits better
- Figfits better
- Coconutfits about as well
- Bananathe original
Fit is the average pairing score against milk, egg, sugar, 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.
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