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Dessert

Velvet Sponge Cake

A light, lemon-flavored sponge cake with powdered sugar icing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 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 ↓

Velvet Sponge Cake

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. Preheat the oven to 350°F (175°C).

  2. Beat the yolks of 3 eggs and mix in the sugar for 15 minutes.

  3. Add the 3 beaten egg whites and boiling water just before incorporating the flour.

  4. Sift the flour with baking powder, fold it into the mixture, and flavor with lemon extract.

Bake

  1. Divide the batter into three layers and bake until golden.

Ice and assemble

  1. For the icing, beat the remaining egg whites to stiff peaks and gradually add powdered sugar, flavoring with lemon.

  2. Spread icing between the layers of cake.

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. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

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

Eggs
Whipped whites trap air and set the cake's light structure, while yolks add richness.
Sugar
Sweetens the batter and helps stabilize the egg yolks for a tender crumb.
All-purpose flour
Provides the starch and gluten that set the cake's structure as it bakes.
Baking powder
Releases gas during baking, lifting the batter so the layers rise.
Boiling water
Adds moisture and steam that help the cake stay soft and expand in the oven.

The step that matters

Folding in the flour. Once flour is added, overmixing develops gluten and deflates the whipped egg foam. Gentle folding keeps the batter airy, so the sponge rises light and tender rather than dense.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Lemonthe original
  4. Figfits about as well

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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