Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Cornflour Sauce
Ingredients
Directions
Prepare the flavouring
Remove the outer skin of the lemon in thin shavings with a sharp knife.
Put the lemon shavings into the milk and simmer for 5 minutes.
Thicken and serve
Mix the cornflour smoothly with a little cold milk or water.
Strain the milk and add it to the cornflour, stirring constantly.
Return to the saucepan, add the sugar, and boil for 1 minute before serving.
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 + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 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).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Milk
- Forms the liquid base that the starch thickens into a smooth sauce.
- Cornflour
- Thickens the liquid as its starch swells and gelatinises when heated.
- Castor sugar
- Adds sweetness and rounds out the flavour of the sauce.
- Lemon rind
- Adds fragrant citrus aroma that infuses into the warm milk.
The step that matters
Adding the cornflour mixture to the milk. Stirring constantly while pouring disperses the starch evenly and prevents lumps. Boiling then lets the cornflour fully thicken and lose its raw starch taste.
Swap the lemon
How well each one fits the dish's main ingredients (milk, sugar):
- Vanillafits better
- Figfits better
- Peachfits better
- Lemonthe original
Fit is the average pairing score against milk, sugar. 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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