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Drink

Whey

A sweetened whey beverage made by curdling milk with lemon juice and straining the liquid.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Whey

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 ↓

Whey

Ingredients

Directions

Curdle the milk

  1. Add the lemon juice to the milk.

  2. Warm the mixture slowly until it curdles.

Strain and sweeten

  1. Pour through a thin cloth to separate the curds from the whey.

  2. Sweeten the whey with sugar.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked 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

Milk
Provides the proteins that curdle into soft curds, leaving the liquid whey behind.
Lemon juice
Acidity causes the milk proteins to clump and separate into curds.
Sugar
Adds sweetness to the drained whey.

The step that matters

Warm the mixture slowly until it curdles. Gentle heating lets the milk proteins clump into soft curds. Heating too fast or too hard can make the curds tough and grainy, and the whey less clear.

Swap the lemon

How well each one fits the dish's main ingredients (milk, sugar):

  1. Vanillafits better
  2. Figfits better
  3. Peachfits better
  4. 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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