Why it works: Coffee and milk are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,202 recipes. Both carry 4-heptenal, which smells creamy, biscuit. The science ↓
Coffee-ice
Ingredients
Directions
Make the custard base
Roast the coffee until it is oily.
Pour the coffee into 4 cups of warm milk.
Add 12 ounces of sugar and cover the pot.
Let the mixture cool nearly.
In a bowl, combine 8 egg yolks with 4 cups of milk.
Add the coffee mixture and strain through a sieve into a pot.
Heat gently until it thickens, then cool it down.
Freeze and serve
Pack a bucket with pounded ice and salt.
Freeze the cream according to standard methods.
Serve the ice on a napkin.
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 + milktop 10% of all pairsSmell alikemoderateCooked together2,202 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Coffee + sugartop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and sugar barely smell alike, yet cooks put them together in 77,875 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
- Coffee
- Provides the main flavour of the ice cream once roasted and steeped in the milk.
- Milk
- Forms the liquid base that carries the flavour and becomes creamy when frozen.
- Sugar
- Adds sweetness and lowers the freezing point so the ice cream stays scoopable.
- Egg yolks
- Thicken the custard through gentle heating and add richness and smoothness.
The step that matters
Heat gently until it thickens. Egg yolks set when heated, so high heat can scramble them and leave lumps. Gentle heat thickens the custard evenly and keeps it smooth.
“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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