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 ↓
Cream Filling
Ingredients
Directions
Heat the milk in a saucepan.
In a bowl, mix the sugar, cornstarch, and salt; then add the hot milk.
Cook over hot water, stirring until thick; continue cooking until there is no taste of raw starch.
Beat the egg, then add the milk mixture; return to the double boiler and cook until the egg thickens.
Remove from heat, then add the butter and vanilla.
Cool before using in cream puffs.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + vanillatop 14% of all pairsSmell alikemoderateCooked together20,050 recipes
Shared aroma: guaiacol (smoky, sweet).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Cornstarch
- Thickens the custard as it heats, giving the filling its body.
- Egg
- Sets when heated, adding richness and further thickening to the filling.
- Milk
- Forms the liquid base that the starch and egg thicken.
- Sugar
- Sweetens the filling and helps soften the set of the starch.
- Butter
- Adds fat for a smoother, richer mouthfeel.
The step that matters
Cooking until no raw starch taste remains. Cornstarch must be heated fully to swell and thicken; undercooked starch leaves a raw, pasty taste. The egg must also be cooked gently, since overheating can curdle it.
“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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