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 ↓
Boiled Custard
Ingredients
Directions
In a double boiler, heat the milk with the salt until it is scalding.
Remove from heat and pour the hot milk onto the beaten egg yolks and sugar, stirring constantly.
Return to the heat and stir until the custard thickens and coats the back of a spoon.
Strain the custard into a cold dish and stir in the flavoring.
Once completely cool, gently fold in the stiffly beaten egg whites using a fork.
Serve immediately.
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 + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + vanillatop 23% of all pairsSmell alikelowCooked together27,347 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Egg and vanilla barely smell alike, yet cooks put them together in 27,347 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
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