Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Caramel Icing
Ingredients
Directions
Make the caramel
In a saucepan, combine brown sugar, cream or milk, and salt.
If using milk, add the butter.
Boil the mixture without stirring until it threads.
Cool and finish
Remove from heat and let it cool.
Once cool, beat the mixture until creamy and spread over the cake.
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.
Photo for illustrative purposes only · Contact us to use it
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Cream + milktop 18% of all pairsSmell alikemoderateCooked together29,399 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Brown sugar
- Provides the sweetness and caramel flavor that forms the icing base.
- Cream or milk
- Adds moisture and richness, helping the sugar form a smooth, creamy icing.
- Butter
- Adds fat for a richer texture and smoother finish in the icing.
The step that matters
Boil without stirring until it threads. Stirring while the sugar syrup boils can trigger crystallization, leaving a grainy icing. Boiling to the threading stage concentrates the sugar so the icing sets firm enough to spread once beaten.
“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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