Why it works: Lemon and nutmeg match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 11,318 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Custard Sauce, for Fruit, Etc
Ingredients
Directions
Make the custard
Boil the milk with the thinly cut lemon rind for a few minutes.
Beat the eggs and sugar together.
Strain the hot milk over the egg mixture.
Return the mixture to the saucepan and stir over low heat until it begins to thicken, being careful not to let it boil.
Remove from heat and stir occasionally until cool.
Finish
Grate a little nutmeg on top if desired.
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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Lemon + nutmegtop 5% of all pairsSmell alikestrongCooked together11,318 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + nutmegtop 15% of all pairsSmell alikemoderateCooked together14,685 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Egg + nutmegtop 17% of all pairsSmell alikelowCooked together24,744 recipes
Shared aroma: acetic acid (sour, vinegar).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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
- Egg proteins coagulate as they heat, thickening the milk into a smooth custard.
- Milk
- Forms the liquid base that the egg proteins set into a pourable sauce.
- Sugar
- Sweetens the sauce and helps keep the egg mixture smooth when heated.
The step that matters
Return the mixture to the saucepan and stir over low heat. Egg proteins thicken the sauce, but if it boils they can curdle and turn grainy. Low heat and constant stirring let it thicken gently and evenly.
Swap the nutmeg
The recipe marks nutmeg as optional. How well each one fits the dish's main ingredients (egg, milk, sugar, lemon):
- Cinnamonfits better
- Nutmegthe original
- Dillfits less well
- Gingerfits less well
Fit is the average pairing score against egg, milk, sugar, lemon. Candidates are from the same food group and used in at least 100 recipes.
“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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