Why it works: Chocolate and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 10,020 recipes. Both carry sotolon, which smells curry, maple. The science ↓
21 Chocolate Frosting
Ingredients
Directions
The book gives no oven temperature. The 238°F (114°C) in the steps was added when the recipe was transcribed, as a starting point.
In a saucepan, cook the sugar in boiling water until it reaches 238°F (114°C) or forms a soft ball in cold water.
Gradually pour the sugar mixture onto the stiffly beaten egg whites while beating constantly.
Slowly add the melted chocolate and vanilla extract, then beat until the frosting is stiff enough to spread.
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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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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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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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
- Granulated sugar
- Dissolves into the boiling water and cooks to a syrup that sets the frosting's structure.
- Egg whites
- Whipped into a foam that gives the frosting its light, airy body.
- Melted chocolate
- Adds chocolate flavour and firmness as it stiffens the frosting.
The step that matters
Pouring the hot syrup into the egg whites. Pour the syrup slowly in a thin stream while beating constantly. Pouring too fast or without beating can deflate the foam or cook the egg whites unevenly, so the frosting loses its airy structure.
“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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