Why it works: Butter and egg are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 118,967 recipes. Both carry decanal, which smells soap, orange peel. The science ↓
To Roast Coffee
Ingredients
Directions
Prepare the beans
Pick out the black or imperfect grains from the coffee.
Put the coffee in a pan and stir continuously while roasting until it is the color of a ripe chestnut.
About ten minutes before it is done, add the butter.
While hot, transfer the coffee to a box and cover it closely.
Make the coffee
Beat the egg and mix it with the ground coffee and just enough cold water to moisten it.
Stir the mixture well and place it in your coffee pot.
Pour the boiling water over the mixture and let it boil hard for 10 to 15 minutes.
Stir frequently and do not leave it until the grounds sink.
Be careful not to let the coffee boil over.
Rinse your coffee pot with boiling water, pour in the coffee, and serve it hot.
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 + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Coffee + buttertop 23% of all pairsSmell alikemoderateCooked together2,442 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
-
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
- Coffee
- Provides the main flavor; roasting develops its color and aroma.
- Butter
- Added near the end of roasting to add richness and fat to the beans.
- Egg
- Beaten and mixed with the grounds to help bind them and settle the brew.
- Boiling water
- Extracts flavor from the coffee grounds during brewing.
The step that matters
Stir frequently and do not leave it until the grounds sink. Boiling hard can make the coffee foam and boil over, and the grounds need stirring to extract evenly. Letting it sit unattended risks bitterness and overflow.
“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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