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Dessert

Biscuit Glace

A frozen custard made with heavy cream, egg yolks, powdered sugar, vanilla, and macaroons.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Biscuit Glace

Ingredients

Directions

Make the base

  1. Beat the egg yolks, powdered sugar, and vanilla together until very light.

  2. Whip the heavy cream until very stiff.

  3. Roll the macaroons very fine and add them to the whipped cream.

  4. Gently fold the egg and sugar mixture into the cream using a knife; do not stir.

Freeze

  1. Prepare a bucket filled with ice and salt.

  2. Pack the mixture immediately into the bucket and freeze hard.

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. Cream + sugartop 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

Heavy cream
Whipped to a stiff foam, it gives the ice cream its rich, airy body.
Egg yolks
Their emulsifying proteins and fat add richness and a smooth, creamy texture.
Powdered sugar
Sweetens the base and helps keep the frozen texture soft rather than icy.
Macaroons
Add almond flavor and sweetness, and their crumbs give the ice cream body and texture.

The step that matters

Gently fold the egg and sugar mixture into the cream. Stirring knocks air out of the whipped cream, making the ice cream dense and heavy. Folding with a knife keeps the air bubbles intact, so the frozen result stays light and smooth.

“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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