Why it works: Beans and walnut match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 162 recipes. Both carry 2,3,5-trimethylpyrazine, which smells cocoa, roasted. The science ↓
To Make Coffee
Ingredients
Directions
Roast the beans
Dry the coffee beans in the oven with the door open for 1–2 hours before roasting.
Roast the beans in an iron pan over heat, stirring constantly until they turn light brown.
Add the butter 3 minutes before removing the pan from heat.
Brew with a filter
Place ground coffee in a filter and wet it with cold water.
Let the coffee sit for 5 minutes.
Insert the filter into the pot.
Fill the pot with boiling water.
Keep the pot hot without boiling.
After brewing, add more water to make a quart of coffee.
Make boiled coffee
For boiled coffee, mix 1 cup of ground coffee with 1 quart of water and stir in the egg or fish skin.
Boil the mixture for 10 minutes.
Pour a cup out and back into the pot.
Let it sit for 10 minutes before serving.
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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Beans + walnuttop 8% of all pairsSmell alikestrongCooked together162 recipes
Shared aroma: 2,3,5-trimethylpyrazine (cocoa, roasted).
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Coffee + walnuttop 11% of all pairsSmell alikemoderateCooked together289 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Coffee + beanstop 13% of all pairsSmell alikemoderateCooked together289 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Walnut + buttertop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Coffee beans
- Provide the flavour compounds that develop during roasting and give the coffee its body.
- Butter
- Adds fat that carries aroma and gives the roasted beans a richer flavour.
- Egg or salt-fish skin
- Added to the boiled coffee to help settle the grounds, clarifying the liquid.
The step that matters
Keep the pot hot without boiling. Brewing with water that is kept just below boiling extracts flavour smoothly, while a rolling boil can over-extract bitterness and make the coffee harsh.
Swap the beans
How well each one fits the dish's main ingredients (coffee, walnut, butter, egg):
- Pecansfits better
- Almondfits better
- Hazelnutfits better
- Beansthe original
Fit is the average pairing score against coffee, walnut, butter, egg. Candidates are from the same food group and used in at least 100 recipes.
“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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