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Drink

Boiled Coffee

A beverage made by boiling coffee with egg and water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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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 ↓

Boiled Coffee

Ingredients

Directions

Prepare

  1. Wash the egg, break it, and beat it slightly.

  2. Dilute the egg with ½ cup of cold water, add crushed eggshell, and mix with the coffee.

Brew

  1. Pour the mixture into a coffee pot and add 6 cups of boiling water.

  2. Stir thoroughly and boil for 3 minutes.

  3. Add the remaining 1 cup of cold water to clear the coffee.

  4. Let it simmer for 10 minutes, but do not allow the coffee to boil.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Coffee + eggtop 29% of all pairs
    Smell alikelow
    Cooked 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 main coffee flavor and aroma that the brew extracts into the water.
Egg
Its proteins set as they heat, trapping fine grounds so the coffee becomes clearer.

The step that matters

Do not let the coffee boil during the final simmer. Once the egg has set and the grounds have settled, a rolling boil would stir them back up and cloud the coffee, making it muddier and more bitter. A gentle simmer keeps the clarified brew clear.

“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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