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Dessert

Petits Fours

Petits Fours are small biscuits made from a batter of eggs, sugar, and flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Petits Fours

Ingredients

Directions

Make the batter

  1. Whip the egg whites until stiff peaks form.

  2. Gently fold in the egg yolks, then add sugar and flour.

  3. Do not overwork the batter to keep it from becoming too runny.

  4. Pipe the batter onto 3-inch wide strips of paper.

  5. Place the strips on a large baking sheet.

Bake and finish

  1. Bake only when the sugar is melted and the biscuits are smooth.

  2. Once baked, remove from the paper and let cool.

  3. Turn them onto a folded towel, lightly moisten the paper, and detach the biscuits.

  4. Store them in a warm place to dry for a moment.

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 + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

Egg and flour barely smell alike, yet cooks put them together in 106,462 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 whites
Whipped into stiff peaks, they give the batter its light, airy structure.
Egg yolks
Folded in gently, they add richness and help bind the batter.
Sugar
Melts during baking, adding sweetness and helping the biscuits set smooth.
Flour
Provides the structure that lets the baked batter hold its shape.

The step that matters

Do not overwork the batter. Overmixing knocks air out of the whipped egg whites, so the batter turns runny and the biscuits lose their light structure and spread.

“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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