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Dessert

A Dessert

A lemon custard dessert made by thickening sugar water with corn starch, adding lemon juice and egg whites, topped with a thin yolk custard.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Corn and lemon are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,927 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

A Dessert

Ingredients

Directions

Make the base

  1. Boil sugar and water together.

  2. Add corn starch and cook until thick enough to mold.

Finish and serve

  1. Stir in lemon juice and beaten egg white until smooth.

  2. Use egg yolk to make a thin custard to pour over the dessert when ready to serve.

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. Corn + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together1,927 recipes

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

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

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

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

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

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

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

  5. Sugar + corntop 21% of all pairs
    Smell alikelow
    Cooked together7,168 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

Corn starch
Thickens the mixture as it cooks, giving the custard its body.
Sugar
Sweetens the dish and helps form the syrup base.
Lemon juice
Adds acidity and bright lemon flavor to the custard.
Egg
Adds richness and helps thicken and enrich the custard.

The step that matters

Cooking the corn starch until thick. Cornstarch only thickens fully when the mixture is cooked long enough to gelatinize its starch. Stirring while it cooks keeps the custard smooth and prevents lumps.

Swap the lemon

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

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

Fit is the average pairing score against sugar, corn, 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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