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 ↓
Chocolate Cream Custard
Ingredients
Directions
Make the custard
Heat the milk in a saucepan until just boiling.
Remove from heat and add the chocolate, stirring until melted.
Whisk together egg yolks, sugar, cornstarch, and salt in a bowl.
Gradually add the hot chocolate mixture to the egg mixture, whisking constantly.
Return the mixture to the saucepan and cook over medium heat, stirring until thickened.
Remove from heat and stir in vanilla extract.
Serve
Pour into serving dishes and chill 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 + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + chocolatetop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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
- Egg yolks
- Thicken the custard as they set and add richness and a smooth texture.
- Cornstarch
- Thickens the custard by swelling in the hot liquid so it becomes smooth and pourable.
- Dark chocolate
- Provides the chocolate flavour and, as it melts, fat that adds richness to the custard.
- Milk
- Forms the liquid base that the chocolate melts into and the thickeners set in.
- Sugar
- Adds sweetness and balances the bitterness of the dark chocolate.
The step that matters
Gradually add the hot chocolate mixture to the egg mixture, whisking constantly.. Adding hot liquid to egg yolks too fast can scramble them. Pouring slowly while whisking gently raises their temperature so they blend in smoothly and thicken the custard without lumps.
“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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