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 Pie
Ingredients
Directions
Make the filling
In a bowl, mix cornstarch, sugar, and grated chocolate.
Add hot milk and cook over simmering water for 45 minutes, stirring frequently.
Stir in egg yolks and salt; cook for an additional 3 minutes.
Remove from heat, let cool slightly, then add vanilla and pour into a baked pie shell.
Top and brown
Top with meringue and brown in a cool oven at 275°F (135°C).
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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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, 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
- Cornstarch
- Thickens the milk mixture into a sliceable custard as it cooks.
- Egg yolks
- Add richness and help set the filling as it cooks.
- Chocolate
- Provides the chocolate flavour and color of the filling.
- Milk
- Forms the liquid base that the starch thickens into the custard.
- Sugar
- Sweetens the filling and balances the bitterness of the chocolate.
The step that matters
Cooking the filling over simmering water. Starch thickens only when the mixture is cooked long enough, but egg yolks can curdle if overheated. Gentle, steady heat with frequent stirring gives a smooth, thick custard.
“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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