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Dessert

Gelatine Custard

A chilled custard made with gelatin, milk, eggs, sugar, and lemon, topped with whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Why it works: Lemon and milk 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 ↓

Gelatine Custard

Ingredients

Directions

Prepare the gelatine

  1. Dissolve the gelatine in boiling water and stir until fully dissolved.

  2. Add lemon juice and sugar, then strain into a serving dish and cool.

Make the custard

  1. In a saucepan, combine milk, egg yolks, and sugar; cook until thickened and let cool.

Assemble and serve

  1. Cut the gelatine into small squares and pour the custard over it.

  2. Beat the egg whites until stiff, then gradually add powdered sugar and spoon over the custard before serving.

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 + milktop 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 + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

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

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

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

Gelatine
Sets the liquid so the dish holds its shape when cut.
Egg yolks
Thicken the custard as their proteins set with gentle heat.
Milk
Forms the creamy base of the custard and adds richness.
Sugar
Adds sweetness to the gelatine layer and the custard.
Lemon juice
Adds acidity that brightens the flavour of the gelatine layer.
Egg whites
Whipped until stiff, they form a light, airy topping.

The step that matters

Cooking the custard until thickened. Egg yolk proteins thicken the custard as they set with gentle heat. Too much heat makes them scramble and curdle, so cook slowly and stir constantly.

Swap the lemon

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

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

Fit is the average pairing score against sugar, milk, 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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