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Dessert

Lemon Cream

A lemon custard made with grated rind, lemon juice, water, sugar, and eggs.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Lemon Cream

Ingredients

Directions

Prepare

  1. Beat the egg whites and lemon together.

  2. Add the water and let it stand for 1 hour.

Make the custard

  1. Stir in the sugar and the yolks of the eggs.

  2. Place the mixture over gentle heat.

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.

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

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

  2. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  3. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 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

Eggs
Egg proteins set as they heat, thickening the mixture into a custard.
Lemon juice
Adds sharp acidity that balances the sweetness and gives the custard its bright flavour.
Lemon rind
Contributes aromatic lemon oils that add fragrance without extra liquid.
Sugar
Sweetens the custard and softens the set, keeping it tender.

The step that matters

Placing the mixture over gentle heat. Egg proteins coagulate at moderate temperatures. Too much heat, or heat that is too fast, makes them tighten and curdle, leaving a grainy custard instead of a smooth one.

Swap the lemon

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

  1. Vanillafits better
  2. Raisinfits about as well
  3. Lemonthe original
  4. Datesfits less well

Fit is the average pairing score against sugar, egg. 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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