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Dessert

Custard Biscuit

A frozen custard dessert made from egg yolks, sugar, cream, and flavoring, folded with whipped cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Custard Biscuit

Ingredients

Directions

Make the custard

  1. Beat the egg yolks with sugar and salt until well combined.

  2. Stir in the cream and heat over low fire until slightly thickened.

  3. Add your choice of flavoring.

Freeze and finish

  1. Freeze the mixture as ice cream.

  2. When half frozen, gently fold in the whipped cream.

  3. Partially fill paper cases with the mixture, smooth the tops, and place in the ice cream cave.

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 + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  3. Cream + vanillatop 15% of all pairs
    Smell alikelow
    Cooked together12,301 recipes

    Shared aroma: 2-nonanone (fruity, floral).

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

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

  5. Egg + vanillatop 23% of all pairs
    Smell alikelow
    Cooked together27,347 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Egg yolks
Thicken the custard and add richness through their emulsifying fats and proteins.
Sugar
Sweetens the custard and keeps the frozen texture softer by lowering the freezing point.
Cream
Adds fat that makes the frozen custard smooth and rich rather than icy.
Whipped cream
Folded in near the end to lighten the texture with trapped air.

The step that matters

Heating the custard over low fire. Gentle heat lets the egg yolks thicken the cream slowly. Higher heat can curdle the eggs into lumps, so the custard should be stirred and only slightly thickened.

“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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