Why it works: Coffee and sugar are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 4,344 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Coffee Syrup
Ingredients
Directions
Reduce the coffee
In a saucepan, combine ground coffee and water.
Boil the mixture until it reduces to 1 pint.
Sweeten and bottle
Transfer the liquid to a clean saucepan and boil again.
Add white sugar until it reaches a syrupy consistency.
Remove from heat, let cool, then bottle and seal.
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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Coffee + sugartop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground coffee
- Supplies the main coffee flavor and aroma, which concentrate as the liquid reduces.
- White sugar
- Sweetens the syrup and gives it a thicker, syrupy body.
The step that matters
Boil the mixture until it reduces to 1 pint. Evaporating water concentrates the coffee's flavor and compounds. Stopping too early leaves a weak, thin base, while reducing too far makes it bitter and overly strong.
“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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