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Dessert

Egg Cream

A custard made from eggs, sugar, lemon juice, and rind, folded with beaten whites and chilled.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Sugar and lemon 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 ↓

Egg Cream

Ingredients

Directions

Make the custard

  1. Beat the yolks of the eggs.

  2. Add the sugar and mix well.

  3. Add the lemon juice and lemon rind.

  4. Cook over hot water until thick, like soft custard.

Finish and chill

  1. Beat the egg whites until stiff.

  2. Fold the stiff whites into the yolk mixture until well blended.

  3. Remove from heat, pile in a serving dish, and chill.

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. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  2. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

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

  3. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 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

Eggs
Yolks thicken the custard on gentle heat, while stiffly beaten whites lighten the texture.
Sugar
Sweetens the custard and helps balance the tartness of the lemon.
Lemon juice
Adds acidity and bright flavour that cuts through the richness of the eggs.

The step that matters

Cooking the custard over hot water. Egg yolks thicken as their proteins set with gentle heat. If the heat is too high or the custard is cooked too long, the eggs can scramble and turn grainy. Cooking slowly over hot water keeps the texture smooth.

Swap the lemon

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

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

Fit is the average pairing score against egg, 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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