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Dessert

Banana Sponge

A gelatin-based dessert made with banana pulp, lemon juice, sugar, and 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 banana are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 1,134 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓

Banana Sponge

Ingredients

Directions

Make the base

  1. Dissolve gelatine in ½ cup cold water and boiling water.

  2. Add sugar and lemon juice, then chill and stir occasionally.

Whip and finish

  1. When partly set, add banana pulp and beat until foamy.

  2. Finish as you would a Snow Pudding.

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 + bananatop 16% of all pairs
    Smell alikemoderate
    Cooked together1,134 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  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 + bananatop 19% of all pairs
    Smell alikelow
    Cooked together3,102 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  5. 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 light, wobbly structure that holds the foam.
Sugar
Adds sweetness and helps give the set dessert its body.
Lemon juice
Adds acidity that brightens the banana flavour and balances the sugar.
Banana pulp
Adds banana flavour and moisture to the set mixture.
Egg whites
Whipped to foam, they add lightness and airiness to the finished dessert.

The step that matters

Beat the banana pulp in when partly set. If the gelatine is too liquid, the foam will collapse; if it is too firm, the pulp will not blend in evenly. Partly set gelatine traps air and holds the beaten foam in place.

Swap the banana

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

  1. Orangefits better
  2. Vanillafits better
  3. Limefits better
  4. Bananathe 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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