Skip to main content
Dessert

Lemon Sponge

A gelatin-based lemon sponge made with sugar, lemon rind, juice, and whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
Jump to recipe ↓

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 ↓

Lemon Sponge

Ingredients

Directions

Make the lemon syrup

  1. Soak the gelatine in the water with the lemon rind for 1 hour.

  2. Add the sugar and dissolve it over low heat.

  3. Stir and simmer for a few minutes.

  4. Strain into a bowl and add the lemon juice.

Whisk and set

  1. When it begins to set, beat in the whipped egg whites until light and spongy.

  2. Heap the mixture onto a glass dish.

  3. Optionally, color a portion pale pink with cochineal and sprinkle with chopped pistachio kernels.

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. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

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

  3. Sugar + eggtop 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

Gelatine
Sets the liquid into a firm, wobbly structure as it cools.
Lump sugar
Dissolves into the liquid to sweeten it and soften the set.
Lemon juice
Adds sharp acidity that gives the dessert its bright lemon flavour.
Egg whites
Whipped into foam, they lighten the mixture and give it a spongy texture.

The step that matters

Beat in the egg whites as the mixture begins to set. Egg white foam holds air only if the mixture is cool and slightly thickened. If it is still hot and runny, the foam collapses and the sponge becomes dense. If it has set too firmly, the whites will not blend in evenly.

Swap the lemon

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

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

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

More lemon sponge cake recipes

Pudding 5 See all 108 →

You might also like

Lemon CakeLemon Cake228 recipesLemon IceLemon Ice147 recipesLemon SherbetLemon Sherbet103 recipesLemon CustardLemon Custard64 recipes