Why it works: Vanilla and milk 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 ↓
Vanilla or Lemon Ice Cream
Ingredients
Directions
Make the custard
Beat the egg yolks well and stir them into the milk.
Add the sugar, cream, and vanilla or lemon peel.
Heat the mixture over moderate heat, stirring constantly with a silver spoon until it is boiling hot.
Finish
Remove the lemon peel or vanilla and let the mixture cool.
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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Vanilla + milktop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Vanilla + sugartop 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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Vanilla + creamtop 15% of all pairsSmell alikelowCooked together12,301 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Milk + creamtop 18% of all pairsSmell alikemoderateCooked together29,399 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Vanilla and sugar 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 custard as they heat and give the ice cream a rich, smooth body.
- Milk
- Forms the liquid base that the yolks and sugar are blended into.
- Cream
- Adds fat, which makes the frozen ice cream softer and creamier.
- Sugar
- Sweetens the base and lowers its freezing point so it stays scoopable.
- Vanilla or lemon peel
- Provides the main flavour; it is steeped in the base and then removed.
The step that matters
Heating the custard with constant stirring. Egg yolks thicken as they heat, but if the mixture is heated too fast or left unstirred, the yolks can scramble and curdle. Gentle heat with constant stirring keeps the custard 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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