Why it works: Chocolate and sugar are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 15,404 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Chocolate Icing
Ingredients
Directions
Make the chocolate
Finely grate the chocolate and place it in a porcelain cup with ½ tablespoon of cold water.
Set the cup in a pan of boiling water and stir until smooth, about 2-3 minutes.
Remove the cup from the water.
Make the icing and finish
In a separate bowl, beat the egg white and sugar together for 2-3 minutes.
Stir in the melted chocolate and mix well.
Spread the icing on the cake using a broad knife.
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 + sugartop 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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Chocolate + eggtop 24% of all pairsSmell alikemoderateCooked together11,448 recipes
Shared aroma: 2-heptenal (green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg white
- Whipped with sugar to create a light, airy structure in the icing.
- Powdered sugar
- Dissolves into the egg white to sweeten and thicken the icing.
- Chocolate
- Gives flavour and body to the icing once melted smooth.
The step that matters
Melting the chocolate with water. Chocolate can seize or turn grainy if overheated or if water gets into it. Gentle heat in a water bath, with the cup kept out of direct contact with the pan, melts it evenly into a smooth, glossy mixture.
“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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