Why it works: Egg and milk are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 88,785 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Boiled Custard
Ingredients
Directions
Prepare
Scald the milk in a saucepan.
In a bowl, beat together the sugar and eggs.
Make the custard
Add the egg mixture to the scalded milk.
Stir continuously over low heat until thickened.
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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Egg + milktop 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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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and sugar barely smell alike, yet cooks put them together in 77,875 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
- Eggs
- Their proteins set as they heat, thickening the milk into a custard.
- Milk
- Forms the liquid base that the egg proteins thicken as it warms.
- Sugar
- Adds sweetness and helps balance the richness of the eggs and milk.
The step that matters
Stirring over low heat until thickened. Egg proteins set at moderate temperatures. If the heat is too high or stirring stops, the eggs can scramble or curdle instead of thickening smoothly. Constant stirring spreads the heat evenly and 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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