Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Boiled Icing
Ingredients
Directions
Make the syrup
In a saucepan, combine the sugar and water.
Boil the mixture until it reaches a rope-like consistency.
Finish the icing
Beat the egg whites until stiff peaks form.
Once the syrup looks creamy, gradually add the egg whites while beating vigorously.
Add vanilla extract to taste.
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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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + vanillatop 23% of all pairsSmell alikelowCooked together27,347 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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
- Sugar
- Forms a syrup that sweetens the icing and gives it a glossy, firm body.
- Egg whites
- Whipped into foam that gives the icing a light, airy structure.
- Vanilla extract
- Adds aroma and flavor to the finished icing.
The step that matters
Adding the egg whites to the syrup. Beating the egg whites gradually into the hot syrup lets the heat partly set the egg proteins, stabilizing the foam. Adding them too fast or letting the mixture cool too far can deflate the icing or leave it lumpy.
“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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