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 ↓
Ice Cream Without a Freezer
Ingredients
Directions
Make the custard
Beat the yolks of the eggs until light, then stir in the sugar.
Gradually add the heated milk while beating continuously.
Fold in the beaten egg whites until well combined.
Boil the mixture in a pail set inside another with hot water for about 15 minutes, stirring steadily until thickened.
Pour into a bowl and let cool completely.
Once cool, beat in the cream and vanilla or your chosen flavoring.
Freeze
Transfer to a pail with a close-fitting cover and pack with ice and rock salt, using three parts ice to one part salt.
Beat the mixture for 5 minutes.
Cover and add more ice and salt on top.
Cover the whole with a thick mat or blanket and let it stand for 1 hour.
Uncover and scrape the frozen custard from the sides and bottom.
Beat again until smooth.
Replace the cover, ice, and salt, and let it sit for 5 to 6 hours, replenishing ice and salt as needed.
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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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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Cream + vanillatop 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).
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 custard and add richness as they set when heated.
- Egg whites
- Add lightness and airy structure to the custard base.
- Sugar
- Sweetens the base and lowers the freezing point for a softer texture.
- Rich milk
- Forms the liquid base of the custard and carries the flavor.
- Rich sweet cream
- Adds fat for a smooth, creamy mouthfeel in the frozen result.
- Rock salt
- Lowers the ice temperature so the custard can freeze without a freezer.
The step that matters
Cooking the custard until thickened. Heating the yolks gently while stirring thickens the base without scrambling it. Overheating curdles the eggs, leaving a grainy texture in the finished ice cream.
“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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