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Dessert

Grape Sponge

A light, gelatin-based dessert made with grape juice, sugar, lemon juice, and whipped egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and grape are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 2,412 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Grape Sponge

Ingredients

Directions

Prepare the gelatine

  1. Soften the gelatine in cold water.

  2. Dissolve the gelatine in boiling water.

Make the mixture

  1. Mix sugar, lemon juice, and grape juice with the dissolved gelatine.

  2. Whip the egg whites until stiff and fold into the mixture.

Set

  1. Chill until set.

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. Lemon + grapetop 14% of all pairs
    Smell alikemoderate
    Cooked together2,412 recipes

    Shared aroma: 3-hexenal (apple, fruity).

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

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

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

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

  4. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  5. Sugar + grapetop 23% of all pairs
    Smell alikelow
    Cooked together7,490 recipes

    Shared aroma: beta-damascenone (apple, rose).

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
Forms the gel network that sets the cake and gives it its firm, wobbly body.
Egg whites
Whipped into foam, they add lightness and an airy, sponge-like texture.
Grape juice
Provides the main flavour and most of the liquid that the gelatine sets.
Sugar
Adds sweetness and balances the tartness of the juice.
Lemon juice
Adds acidity that brightens the grape flavour.

The step that matters

Folding in the whipped egg whites. Stirring the foam in too vigorously knocks out the air bubbles that make the sponge light. Fold gently with a spatula, in a few additions, so the mixture stays airy. Add it before the gelatine begins to set.

Swap the grape

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

  1. Orangefits better
  2. Vanillafits better
  3. Limefits better
  4. Grapethe original

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

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