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 ↓
French Custard
Ingredients
Directions
Make the custard
Sweeten the milk with loaf sugar and flavor it with vanilla or peach.
Pour the milk into a flat saucepan and bring it to a boil.
Beat the egg whites until frothy.
Once the milk boils, drop spoonfuls of the egg whites into the milk until they harden slightly.
Carefully skim the egg whites off and place them on a dish.
Beat the yolks and stir them into the boiling milk until it thickens.
Serve
Pour the thickened milk over the egg whites and garnish with bits of colored jelly or marmalade.
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.
Photo for illustrative purposes only · Contact us to use it
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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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).
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 whites
- Poach into soft, airy islands that give the dessert its light, spongy texture.
- Egg yolks
- Thicken the hot milk into a smooth custard as they set with gentle heat.
- Milk
- Forms the liquid base of the custard that the yolks thicken.
- Loaf sugar
- Sweetens the milk so the custard has a clear sweet flavor.
The step that matters
Stirring the yolks into the boiling milk. Egg yolks thicken as their proteins set, but if the milk is too hot or stirred too little, the yolks can scramble into lumps. Stir steadily and keep the custard just below a hard boil until it coats a spoon.
“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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