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 ↓
Vanilla Icing
Ingredients
Directions
The book says “a cool oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the icing
Boil the water and vanilla essence together.
Mix in the sugar until smooth.
Finish the cake
Spread on the cold cake using the back of a spoon.
Dry in a cool oven at 300°F (150°C).
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).
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
- Sifted sugar
- Provides sweetness and the bulk that sets the icing's body.
- Boiling water
- Dissolves the sugar so the icing becomes smooth and spreadable.
The step that matters
Mixing in the sugar while the liquid is hot. Sugar dissolves much more readily in hot liquid, so stirring it into boiling water gives a smooth icing without grit. Spreading onto a cold cake keeps the icing from melting off.
“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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