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Dessert

Iced Sponges

A light sponge cake flavored with orange or lemon essence and frosted with royal icing.

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 ↓

Iced Sponges

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Make the batter

  1. In a large bowl, combine the sugar, egg yolks, flour, and essence. Mix vigorously for 10 minutes.

  2. Gently fold in the whipped egg whites until fully combined.

  3. Pour the batter into a paper pan, ensuring the cake is about 1 inch thick.

Bake and finish

  1. Bake in a preheated oven at 350°F (175°C) until done.

  2. Once cooled, remove the paper and cut the cake into desired shapes.

  3. Spread preserves on the surface of each piece and ice with royal icing.

  4. Allow to dry on a wire rack 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. 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. Sugar + orangetop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

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

  4. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  5. Flour + orangetop 21% of all pairs
    Smell alikemoderate
    Cooked together6,821 recipes

    Shared aroma: isobutyraldehyde (malty, 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 yolks
Add richness and moisture, and help give the sponge its tender crumb.
Egg whites
Whipped and folded in, they trap air that lifts the cake as it bakes.
Flour
Provides the structure that holds the sponge's airy network together.
Sugar
Sweetens the batter and adds tenderness to the crumb.

The step that matters

Folding in the whipped egg whites. Folding gently keeps the air bubbles in the whipped whites intact. Stirring or deflating them would leave a denser cake that rises less in the oven.

Swap the orange

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

  1. Raisinfits better
  2. Vanillafits better
  3. Lemonfits better
  4. Orangethe original

Fit is the average pairing score against sugar, egg, flour. 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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