Why it works: Strawberry and vanilla are a kitchen classic. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,385 recipes. Both carry p-vinylguaiacol, which smells spicy, fruity. The science ↓
Neapolitan Ice
Ingredients
Directions
Make the custard
Cream the egg yolks and 3 oz of castor sugar together until well combined.
Add the remaining sugar to the milk and bring to a boil, then pour it onto the egg yolk mixture while stirring vigorously.
Return the mixture to the heat and stir until it thickens, then strain it.
Flavour and divide
Dissolve the chocolate in 1 tablespoon of water, mix it with one-third of the custard, and let it cool.
Mix the fruit pulp with half of the remaining custard, adding a few drops of carmine if needed.
To the last third of the custard, add the vanilla essence.
Whip the cream slightly, divide it into 3 equal portions, and add one portion to each mixture.
Freeze each mixture separately, then pack them in layers in a suitable mold.
Freeze and serve
Cover closely and pack in salt and ice for about 2 hours.
Serve cut into slices.
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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Strawberry + vanillatop 1% of all pairsSmell alikemoderateCooked together1,385 recipes
Shared aroma: p-vinylguaiacol (spicy, fruity).
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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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
- Egg yolks
- Thicken the custard base and add richness when cooked gently.
- Milk
- Forms the liquid base of the custard and gives a creamy body.
- Cream
- Adds fat and softness, making the frozen layers smoother and less icy.
- Castor sugar
- Sweetens the custard and lowers the freezing point for a softer texture.
- Strawberry or raspberry pulp
- Provides fruit flavour, colour and moisture to the fruit layer.
- Grated chocolate
- Adds bitter depth and flavour to the chocolate layer.
The step that matters
Return the mixture to the heat and stir until it thickens. Egg yolks set when heated, but if the custard gets too hot it can curdle and turn grainy. Stirring steadily over gentle heat and straining afterward keeps it smooth.
Swap the strawberry
How well each one fits the dish's main ingredients (chocolate, egg, milk, cream, sugar, vanilla):
- Coconutfits about as well
- Strawberrythe original
- Raspberryfits about as well
- Figfits about as well
Fit is the average pairing score against chocolate, egg, milk, cream, sugar, 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.
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