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
Mix cornstarch, sugar, and chocolate in a bowl, then add hot milk.
Cook over hot water for 45 minutes, stirring frequently.
Add egg yolks and salt, then cook for 3 more minutes.
Remove from heat, cool slightly, and add vanilla.
Assemble and bake
Pour into a baked pie shell.
Cover with meringue.
Brown in a slow 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
- Swells in the hot milk and thickens the filling into a set custard.
- Egg yolks
- Enrich the custard and add further thickening as they heat.
- Chocolate
- Gives the filling its chocolate flavor and color.
- Milk
- Forms the liquid base that the starch thickens.
- Sugar
- Sweetens the filling.
- Vanilla
- Adds aroma that rounds out the chocolate flavor.
The step that matters
Cook the filling over hot water, stirring often. Starch thickens as it heats, and stirring keeps it smooth and prevents scorching. Egg yolks can curdle or turn grainy if the custard overheats, so gentle, steady heat matters.
“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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