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Dessert

Jelly and Custard

A layered dessert of gelatin set in custard with whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Milk and corn are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 6,955 recipes. Both carry hexanal, which smells green, grassy. The science ↓

Jelly and Custard

Ingredients

Directions

Make the jelly

  1. Soak the gelatin in enough water to cover it.

  2. Pour 1 pint of boiling water over the soaked gelatin.

  3. Add 1 cup of white sugar, lemon juice, and essence of lemon; set aside to stiffen.

Make the custard

  1. In a saucepan, combine 1½ pints of milk, yolks of 3 eggs, and 1 tablespoon of corn starch; cook until thickened.

Layer and top

  1. Once the jelly is set, cut it into squares and layer it in a dish with the cold custard.

  2. Continue layering jelly and custard until all is used.

  3. Beat the egg whites to stiff peaks, adding confectioner's sugar to taste, and layer on top with jelly in between.

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. Milk + corntop 10% of all pairs
    Smell alikemoderate
    Cooked together6,955 recipes

    Shared aroma: hexanal (green, grassy).

  2. Lemon + corntop 13% of all pairs
    Smell alikemoderate
    Cooked together1,927 recipes

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

  3. Lemon + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

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

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

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

Gelatine
Sets the liquid into a firm, sliceable jelly that holds its shape.
Egg yolks
Thicken the milk into a custard as they set with gentle heat.
Corn starch
Thickens the custard so it holds its body when layered.
Egg whites
Whipped to stiff peaks, they form a light, airy topping layer.
White sugar
Sweetens the jelly and balances the tart lemon.

The step that matters

Cooking the custard until thickened. Egg yolks and corn starch thicken only when heated gently enough to avoid curdling. Too much heat can scramble the yolks, while too little leaves the custard thin and unable to set firmly between jelly layers.

Swap the lemon

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

  1. Vanillafits better
  2. Coconutfits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, milk, egg, corn. 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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