Why it works: Coffee and egg are a kitchen classic. They rank in the top 29% of all ingredient pairs, and cooks put them together in 3,239 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
To Make Boiled Coffee
Ingredients
Directions
Prepare
Mix the ground coffee with half of the egg or the broken shell and a little cold water.
Scald the coffee boiler.
Brew
Pour boiling water over the coffee mixture, using only half the amount needed to prevent overflow.
Boil for five minutes, stirring once.
Add the remaining boiling water.
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 + eggtop 29% of all pairsSmell alikelowCooked together3,239 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground coffee
- Provides the flavor and color, as its compounds dissolve into the hot water.
- Egg
- Its white and shell help bind fine grounds so they settle after boiling.
The step that matters
Pour the boiling water in two parts. Adding only half the water first keeps the mixture from foaming over the boiler when it reaches a boil. Adding the rest afterward lets the brew finish boiling without losing liquid or grounds.
“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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