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Dessert

Velvet Sponge Cake

A light, airy sponge cake flavored with lemon, layered and iced with powdered sugar.

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. In a bowl, beat the egg yolks and sugar for 15 minutes.

  3. Add the three beaten egg whites and boiling water to the mixture.

  4. Sift the flour and baking powder together, then fold into the mixture.

  5. Add the lemon extract for flavor.

Bake and ice

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

  2. For the icing, beat the three egg whites to stiff peaks, then gradually add the powdered sugar and lemon for flavor.

  3. Spread the 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
Egg whites trap air for lift, and yolks add richness and structure to the crumb.
Flour
Provides the starch and gluten network that sets the cake's structure as it bakes.
Sugar
Sweetens the batter and helps the yolks thicken and hold air while beaten.
Baking powder
Releases gas when heated, helping the cake rise and become light.
Boiling water
Adds moisture to the batter, keeping the cake tender.
Powdered sugar
Sweetens the icing and gives it a smooth, spreadable body.

The step that matters

Fold in the sifted flour. Folding gently keeps the air beaten into the egg foam. Stirring vigorously deflates the batter, which makes the cake dense and less light.

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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