Why it works: Chocolate and vanilla are a kitchen classic. They rank in the top 2% of all ingredient pairs, and 10,018 recipes mention both. Both carry sotolon, which smells curry, maple. The science ↓
The recipe
Ingredients
Contains: egg, milk (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
In a saucepan, combine the finely scraped chocolate and milk or cream.
Boil the mixture until the chocolate is fully dissolved, stirring occasionally.
If using, thicken the mixture with the egg, whisking well.
For added flavor, boil a vanilla bean with the milk.
If using cream, you can skip the egg.
Freeze the mixture using your preferred method.
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.
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Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Chocolate + vanillatop 2% of all pairsAroma overlapmoderateMentioned together10,018 recipes
Shared aroma: sotolon (curry, maple).
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Milk + vanillatop 2% of all pairsAroma overlapmoderateMentioned together19,175 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + milktop 6% of all pairsAroma overlapmoderateMentioned together9,121 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Milk + eggtop 9% of all pairsAroma overlapmoderateMentioned together88,465 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + vanillatop 12% of all pairsAroma overlapmoderateMentioned together27,323 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Chocolate
- Supplies the main flavor and cocoa fat that give the custard its character.
- Milk or cream
- Provides the liquid base, and cream adds richness and a smoother body.
- Egg
- Thickens the custard as its proteins set when gently heated.
- Vanilla bean
- Adds a warm, aromatic flavor to the milk.
The step that matters
Thicken with the egg. Egg proteins set when heated, so the custard can curdle or turn grainy if it gets too hot. Whisk well and keep the heat moderate for a smooth, evenly thickened result.
“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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