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 Ice Cream
Ingredients
Directions
Make the custard
Heat the milk in a double boiler.
Add the beaten egg yolks mixed with sugar and salt.
If it does not thicken, add a little cornstarch mixed with milk.
Stir the custard constantly to keep it smooth.
When cooked, remove from heat and stir in the melted chocolate.
Cool and finish
Set aside to cool.
Just before freezing, mix the custard, cream, beaten egg whites, and vanilla.
If not perfectly smooth, strain before adding the cream.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Chocolate + creamtop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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
- Eggs
- Egg proteins set as the custard heats, thickening the base and giving it body.
- Milk
- Forms the liquid base of the custard and carries the other ingredients.
- Sugar
- Adds sweetness and softens the texture of the frozen ice cream.
- Cream
- Adds fat for richness and a smoother, creamier mouthfeel.
- Chocolate
- Provides the main flavor and adds fat that makes the ice cream richer.
The step that matters
Stir the custard constantly while it cooks. Egg proteins set when heated, and if the custard gets too hot or sits still it can scramble or curdle. Constant stirring spreads the heat evenly so it thickens smoothly.
“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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