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Dessert

Quaking Custard

A chilled custard made with milk, eggs, gelatin, sugar, lemon, and flavored with extract, topped with meringue.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Gelatin and sugar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,778 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Quaking Custard

Ingredients

Directions

Make the custard

  1. Soak the gelatin in ½ cup of milk for 2 hours.

  2. Heat the remaining milk and add the soaked gelatin, stirring until melted.

  3. Remove from heat and pour over the beaten yolks and sugar.

  4. Heat slowly, stirring until the mixture thickens.

  5. Cool the mixture, stirring every 15 minutes.

  6. Once cold, add flavoring and pour into a wet mold.

  7. Set in ice or a cold place until firm.

Finish and serve

  1. Whip the egg whites with a little powdered sugar and lemon juice to make meringue.

  2. Turn out the custard and surround it with the meringue.

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. Gelatin + sugartop 7% of all pairs
    Smell alikemoderate
    Cooked together2,778 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

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

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

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

  4. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 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

Gelatin
Sets the custard into a firm, wobbly body as it cools.
Egg yolks
Thicken the custard and add richness as they heat with the milk.
Milk
Forms the liquid base of the custard.
Sugar
Sweetens the custard and balances the flavor.
Egg whites
Whip into a foam that forms the meringue coating.

The step that matters

Heat slowly, stirring until the mixture thickens. Egg yolks can curdle or scramble if heated too fast or left unstirred. Gentle, constant stirring keeps the custard smooth while the yolks thicken it.

Swap the lemon

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

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

Fit is the average pairing score against milk, egg, gelatin, 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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