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Dessert

Velvet Sponge Cake

A light, airy sponge cake made with eggs, sugar, flour, baking powder, and boiling water.

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 ↓

Velvet Sponge Cake

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the batter

  1. Preheat the oven to 350°F (175°C).

  2. Beat the egg yolks until smooth, then add the sugar and beat until well combined.

  3. Mix in the flour and baking powder, then gradually add the boiling water.

  4. Gently fold in the beaten egg whites until fully incorporated.

Bake

  1. Pour the batter into a greased cake pan and bake for 30 minutes.

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

Eggs
Yolks bind the batter and the whites, beaten and folded in, give the cake its light, airy structure.
Flour
Forms the gluten network that gives the cake its set structure as it bakes.
Baking powder
Releases gas in the batter, causing the cake to rise in the oven.
Sugar
Adds sweetness and helps tenderize the crumb while keeping it moist.
Boiling water
Adds moisture and helps the batter spread and bake to a tender texture.

The step that matters

Folding in the egg whites. Beaten whites trap air that makes the cake rise. Stirring them vigorously deflates the foam, so the cake comes out dense. Fold gently until just combined.

“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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