Why it works: Lemon and milk 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 ↓
Lemonade
Ingredients
Directions
Prepare the lemons
Pare the lemons as thin as possible.
Put 8 lemon rinds into 3 quarts of hot water and cover for 3-4 hours.
Rub fine sugar on the lemons to attract essence.
Squeeze their juice into a bowl.
Make the lemonade
Add 1½ pounds of sugar to the lemon juice.
Mix in the infused water and 3 quarts of boiling hot milk.
Strain through a jelly bag until perfectly clear.
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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Lemon + milktop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + milktop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar 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
- Lemons
- Supply the sharp acidity of the juice and the aromatic oils of the peel.
- Fine sugar
- Adds sweetness that balances the sourness of the lemon juice.
- Hot water
- Extracts flavour from the lemon rinds and carries the sugar through the drink.
The step that matters
Mixing in the boiling hot milk. The acid in the lemon juice makes hot milk curdle and separate. Straining through a jelly bag removes the curds, which is what leaves the drink clear.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, milk):
- Vanillafits better
- Figfits better
- Peachfits better
- Lemonthe original
Fit is the average pairing score against sugar, milk. 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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