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 ↓
Plain Chocolate Icing
Ingredients
Directions
Make the icing
Melt the chocolate in a shallow pan over low heat, being careful not to scorch it.
Stir in the milk or cream and water until well combined.
Add the sugar and boil the mixture for about five minutes.
Assemble and set
While the icing is hot and the cakes are nearly cold, spread it evenly over the surface of one cake.
Place a second cake on top and alternate layers of icing and cakes.
Cover the top and sides with icing, then set in a warm oven to harden.
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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Chocolate + milktop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and sugar barely smell alike, yet cooks put them together in 77,875 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
- Chocolate
- Provides the main flavour and, once cooled, the firm glossy body of the icing.
- Sugar
- Sweetens the icing and, when boiled, thickens it so it can set on the cakes.
- Milk or cream
- Adds moisture and fat, giving the icing a softer, smoother texture.
The step that matters
Boiling the sugar mixture. Boiling for about five minutes concentrates the sugar and cooks off water so the icing thickens enough to set. Boiling too briefly leaves it runny; boiling too long makes it stiff and grainy as it cools.
“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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