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Floating Island

A custard made from milk, cinnamon, lemon peel, eggs, and topped with stiff egg‑white foam and jelly.

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

Why it works: Cinnamon and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 7,950 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Floating Island

Ingredients

Directions

Make the custard

  1. Boil the milk with the cinnamon and lemon peel.

  2. When almost cold, strain the mixture and mix it with the beaten egg white and egg yolks.

  3. Stir over low heat until thick, then pour into a dish and stir occasionally until cold.

Finish and serve

  1. Whisk the 2 egg whites and jelly until a very stiff froth forms.

  2. Heap the froth on top of the custard.

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. Cinnamon + lemontop 7% of all pairs
    Smell alikestrong
    Cooked together7,950 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Milk + cinnamontop 10% of all pairs
    Smell alikemoderate
    Cooked together12,655 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  3. Cinnamon + guavatop 11% of all pairs
    Smell alikestrong
    Cooked together19 recipes

    Shared aroma: cinnamyl acetate (sweet aromatic, cinnamon).

  4. Lemon + guavatop 11% of all pairs
    Smell alikemoderate
    Cooked together27 recipes

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

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

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Egg yolks
Thicken the custard as they set gently over low heat, giving it a smooth body.
Egg whites
Whipped into a stiff foam that holds its shape on top of the custard.
Milk
Forms the custard base and provides moisture and creaminess.
Guava quince or red currant jelly
Adds sweetness and a fruity flavour to the whipped froth.

The step that matters

Whisking the egg whites to a very stiff froth. Egg white proteins trap air and set into a foam that holds its shape only when whipped fully. Any grease or yolk in the bowl, or under-whisking, leaves a loose froth that collapses on the custard.

Swap the guava

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

  1. Vanillafits better
  2. Orangefits better
  3. Blueberryfits better
  4. Guavathe original

Fit is the average pairing score against milk, cinnamon, 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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