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Dessert

Floating Island

A dessert made by boiling milk, adding beaten egg whites and yolks, and topping with a foam of beaten egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Floating Island

Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Floating Island

Ingredients

Directions

Make the custard

  1. Boil the milk in a saucepan.

  2. Once the milk boils, remove the foam from the top.

  3. Beat the yolks and remaining egg whites with sugar and salt.

  4. Stir the egg mixture into the boiling milk.

  5. Let it boil, then pour into a glass dish with the foam floating on top.

  6. Flavor with lemon or vanilla.

Prepare the meringue

  1. Beat the egg whites to a stiff froth.

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.

Photo for illustrative purposes only · Contact us to use it

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. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

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

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

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

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

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

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

Egg yolks
Thicken the milk into a soft custard as they cook and set.
Egg whites
Whipped into a stiff froth that forms the light floating topping.
Milk
Forms the liquid base of the custard.
Sugar
Sweetens the custard and helps stabilize the beaten egg mixture.

The step that matters

Stirring the egg mixture into the boiling milk. Egg yolks can curdle or scramble if the mixture is added too quickly or the heat is too high. Adding the eggs gradually and keeping the custard gently at a boil while stirring helps it thicken smoothly.

Swap the lemon

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

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

Fit is the average pairing score against egg, milk, 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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