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Drink

Boiled Coffee

A coffee prepared by boiling water with ground coffee, egg white, and eggshell, then cooling and settling.

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. Beat the egg white slightly and mix in the crushed eggshell and 4 cups of cold water.

  2. Add the ground coffee and stir together.

Boil

  1. Pour the mixture into a scalded coffee pot and add 3 cups of boiling water.

  2. Boil for 5 minutes, then remove from heat.

Settle

  1. Add the remaining 1 cup of cold water.

  2. Pour out 1 cup of coffee, return it to the coffee pot, and let it stand for 5 minutes to settle.

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 flavor and body of the brewed coffee.
Egg white
As it heats, its proteins set and trap fine grounds so the coffee clears.

The step that matters

Boil for 5 minutes, then remove from heat. Boiling extracts flavor from the grounds, but over-boiling pulls out bitterness. Removing it from heat on time lets the egg white set and gather the grounds for clearing.

“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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