Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Floating Island
Ingredients
Directions
Make the custard
Make soft custard of one quart of milk, yolks of three eggs, one tablespoon corn starch, sweeten to taste and flavor with vanilla.
Beat whites to a stiff froth, scald them over hot water, and set all away until cold.
Make the gelatine base
Soak one half box gelatine in a pint of milk for ten minutes.
Put on the stove and stir until well dissolved.
When cool, beat well: add one cup fine sugar, one teaspoonful of vanilla.
Next add one pint of cream and the beaten whites of five or seven eggs.
Prepare the lemonade and tapioca
Wash and soak a tea cup of tapioca.
Peel two lemons, making them into a quart of rich lemonade, cutting the lemon in thin strips.
Put into a double boiler, stir until nearly dissolved.
Assemble and serve
Use sponge cake or one dozen lady fingers; one pint of cream, whites of two eggs, three tablespoonfuls of sugar. Have the cream cold, put in the whites and, with an egg beater beat to a froth, then sweeten and flavor.
Ornament the top with bits of jelly or small pieces of the whipped egg.
Serve with sponge cake.
When entirely cold, serve with cream.
Nutrition, whole recipe (rough)
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Milk | 1 cup (244ml) whole | 149 |
| Egg | 1 large egg (50g) | 78 |
| Cream | 1 tbsp (15ml) heavy | 51 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Vanilla | 1 tsp extract (4ml) | 12 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Corn + vanillatop 9% of all pairsSmell alikemoderateCooked together1,943 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Milk + corntop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Eggs
- Yolks thicken the custard and whites whip into a light, airy topping.
- Gelatine
- Sets the beaten mixture so it holds its shape when cold.
- Cream
- Adds richness and, whipped, gives a light, fluffy texture.
- Sugar
- Sweetens the dish and softens the set texture.
- Milk
- Forms the liquid base of the custard and gelatine mixture.
The step that matters
Beating the egg whites to a stiff froth. Whites must be beaten until stiff and then kept gently cooled so the foam holds its volume. Under-beaten or deflated whites make the floating island flat and watery.
Swap the lemon
How well each one fits the dish's main ingredients (milk, corn, cream, sugar, egg, vanilla):
- Coconutfits better
- Figfits better
- Strawberryfits better
- Lemonthe original
Fit is the average pairing score against milk, corn, cream, sugar, egg, vanilla. 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.
More floating island recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Lemon Cake228 recipes
Lemon Ice147 recipes
Vanilla Ice Cream108 recipes
Lemon Sherbet103 recipes