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 3 tablespoons of flour with ½ cup of the milk.
Heat the remaining milk in a saucepan until boiling.
Melt the chocolate in a pan in the oven or in boiling water.
Pour the boiling milk over the flour mixture and stir until smooth.
Return to the stove and stir until thickened.
Beat the eggs and sugar together until light.
Combine the egg mixture with the chocolate and vanilla.
Bake and top
Pour into the pie crust and bake until set.
Beat the egg whites with 2 tablespoons of sugar until stiff peaks form.
Spread the meringue over the pie and brown slightly 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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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Chocolate + sugartop 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
- Flour
- Thickens the milk mixture so the filling sets smoothly rather than staying runny.
- Eggs
- Thicken the filling as they set and add richness and structure to the custard.
- Milk
- Forms the liquid base of the custard, which thickens with the flour and eggs.
- Unsweetened chocolate
- Provides the chocolate flavor and deepens the color of the filling.
- Egg whites
- Whip into a stiff foam that forms the meringue topping, adding airy structure.
The step that matters
Pour the boiling milk over the flour mixture and stir until smooth. Starch in flour needs to be fully dispersed in liquid before heating; stirring while adding the hot milk prevents lumps, and the thickening only happens properly once the mixture is hot enough.
“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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