Why it works: Egg and milk are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 88,785 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Naple Biscuits, or Charlotte Russe
Ingredients
Directions
Prepare the shells
Prepare a double batch of sponge cake and bake in round, deep patty pans.
Once cooled, cut out the inside, leaving a shell about ¼ inch thick.
Make the custard
In a bowl, beat the egg yolks with boiling milk, sugar, and flavoring until combined.
Pour the custard into the sponge cake shell and top with jelly or jam.
Top and chill
In another bowl, beat the egg whites with powdered sugar until stiff peaks form and add a little flavoring.
Spread the meringue over the jelly and refrigerate until ready to serve.
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.
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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and sugar barely smell alike, yet cooks put them together in 77,875 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 mixture into a rich, smooth custard.
- Boiling milk
- Warms the yolks gently and forms the body of the custard.
- Egg whites
- Whipped with powdered sugar to form a stable, airy meringue topping.
- Powdered sugar
- Dissolves easily into the whites, helping them hold stiff peaks and adding sweetness.
- Sponge cake (in the method)
- Forms the sturdy shell that holds the custard and topping.
The step that matters
Adding the boiling milk to the yolks. Pouring boiling milk into yolks too quickly can scramble them. Adding it slowly while whisking warms the yolks gradually so the custard thickens smoothly.
“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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