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 ↓
Creams and Ices
Ingredients
Directions
Make the custard
Scald the milk in a double boiler.
Beat the egg yolks lightly and mix with the sugar.
Slowly pour the scalded milk over the egg mixture.
Return to the double boiler and stir constantly until it coats the back of a spoon, but do not let it boil.
Set aside to cool.
Freeze and serve
When ready to freeze, add the cream and vanilla.
Once frozen, add the rum and churn for five minutes.
Pack down in ice with plenty of coarse sea salt for two hours.
Serve as you would punch.
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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Vanilla + rumtop 6% of all pairsSmell alikemoderateCooked together728 recipes
Shared aroma: beta-damascenone (apple, rose).
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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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Milk + rumtop 12% of all pairsSmell alikemoderateCooked together967 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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 gently over heat.
- Heavy cream
- Adds fat for a smooth, rich texture and softer freezing.
- Sugar
- Adds sweetness and lowers the freezing point, keeping the ice cream scoopable.
- Milk
- Forms the liquid base of the custard.
- Rum
- Adds flavor and, as alcohol, keeps the ice cream softer when frozen.
The step that matters
Return to the double boiler and stir constantly without boiling. Egg yolks thicken as they heat, but if the custard gets too hot it can curdle or scramble. Gentle, constant stirring until it coats a spoon gives a smooth custard.
“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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