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Dessert

Yellow Lemon Sponge

A light lemon-flavored sponge cake made with eggs, sugar, lemon zest, gelatin, and water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Yellow Lemon Sponge

Ingredients

Directions

Prepare the flavoring

  1. Grate the lemon rinds into the sugar.

Make the mixture

  1. Cream the egg yolks and sugar together.

  2. Dissolve the gelatine in the water.

  3. Add the dissolved gelatine and lemon juice to the creamed yolks.

  4. Stir until nearly setting.

Fold and set

  1. Whip the egg whites until stiff and carefully fold them in.

  2. When nearly set, pour the mixture into a wetted mold.

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

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

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

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

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

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

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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 give the cake its light, airy structure, while yolks add richness.
Gelatine
Sets the mixture as it cools, giving the sponge a firm, sliceable body.
Castor sugar
Sweetens the cake and helps hold the creamed yolks together with the lemon rind.
Lemons
Juice adds acidity and bright flavor, while the rind adds aromatic oils.

The step that matters

Fold in the egg whites and pour at nearly set. Stiff whites hold the air that makes the sponge light, so they must be folded gently to avoid deflating. Pouring too early lets the mixture run, while pouring too late leaves it too firm to fill the mold evenly.

Swap the lemon

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

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

Fit is the average pairing score against egg, sugar. 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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