Why it works: Coffee and chocolate are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,497 recipes. Both carry 2,3-butanedione, which smells buttery, creamy. The science ↓
Chocolate Ice Cream
Ingredients
Directions
Make the chocolate base
Combine the egg yolks, milk, sugar, and grated chocolate in a double boiler.
Cook the mixture until smooth.
Remove the mixture from heat.
Let the mixture cool.
Whip and freeze
Beat the heavy cream until stiff peaks form.
Beat the egg whites until stiff peaks form.
Fold the whipped cream and beaten egg whites into the cooled chocolate mixture.
Add vanilla extract to taste.
Freeze the mixture until solid.
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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Coffee + chocolatetop 5% of all pairsSmell alikemoderateCooked together1,497 recipes
Shared aroma: 2,3-butanedione (buttery, creamy).
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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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Coffee + vanillatop 9% of all pairsSmell alikemoderateCooked together1,391 recipes
Shared aroma: sotolon (curry, maple).
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
- Egg yolks
- Thicken the chocolate base into a smooth custard as they cook.
- Heavy cream
- Adds richness and body, and whipped air makes the ice cream light.
- Egg whites
- Whipped to stiff peaks, they add air that lightens the frozen texture.
- Whole milk
- Forms the liquid base that the yolks thicken with the chocolate.
- Sugar
- Sweetens the base and softens the frozen texture.
The step that matters
Cook the mixture until smooth. Cooking the yolks gently in a double boiler thickens the custard without scrambling them. Overheating curdles the eggs, leaving a grainy base that will not freeze 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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