Why it works: Egg and sugar are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 122,807 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Floating Island
Ingredients
Directions
Assemble the cake
Cut the sponge cake horizontally into slices.
Spread each slice with red jam.
Stack the slices back into the shape of the cake.
Spread the top with more jam.
Top and decorate
Place the cake on a glass dish and pour the custard over it.
Whip the egg whites with the sugar until stiff and heap on top of the cake.
Decorate with chopped pistachios and hundreds and thousands.
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.
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + pistachiotop 21% of all pairsSmell alikemoderateCooked together1,233 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Egg + pistachiotop 29% of all pairsSmell alikemoderateCooked together822 recipes
Shared aroma: nonanal (fat, citrus).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sponge cake
- Forms the base layers and soaks up the custard as the dessert's body.
- Custard
- Adds moisture and a soft, creamy texture that softens the sponge.
- Egg whites
- Whipped with sugar to form a stiff, airy meringue that tops the dish.
- Red jam
- Adds sweetness and fruity flavour between the cake layers and on top.
The step that matters
Whipping the egg whites with the sugar until stiff. Egg white proteins unfold and trap air when beaten, forming foam. Under-whipped whites stay runny and slump into the custard, while over-beaten whites turn dry and grainy. Stiff peaks hold their shape on top of the cake.
Swap the pistachio
How well each one fits the dish's main ingredients (egg, sugar):
- Pecansfits better
- Almondfits better
- Chestnutfits about as well
- Pistachiothe original
Fit is the average pairing score against egg, 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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