Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Cup Custard
Ingredients
Directions
Prepare
Beat the eggs well while heating the milk.
Split the vanilla pod and soak it in the milk for 1 hour before heating.
Sweeten the milk and heat it until nearly boiling.
Carefully stir the hot milk into the beaten eggs a little at a time to avoid curdling.
Cook the custard
Pour the mixture into a jug placed in a saucepan of boiling water.
Stir the custard with a wooden spoon until it coats the spoon, then remove from heat.
Continue stirring until well thickened.
Cool and serve
Place the jug in a bowl of cold water and stir often while cooling to prevent a skin from forming.
Remove the vanilla pod and pour the custard into glasses.
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.
Photo for illustrative purposes only · Contact us to use it
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 + 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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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 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
- Eggs
- Set the custard as they cook, thickening the milk into a smooth, sliceable mass.
- Milk
- Forms the liquid base that the eggs thicken and gives the custard its body.
- Sugar
- Sweetens the custard and balances the flavor of the eggs and milk.
- Vanilla pod
- Infuses the milk with aroma as it soaks and heats.
The step that matters
Stirring the hot milk into the beaten eggs. Adding hot milk too quickly can scramble the egg proteins and cause curdling. Adding it a little at a time while stirring gently tempers the eggs so they blend smoothly.
“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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