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Drink

Coffee Milk

Coffee Milk is a beverage made by boiling ground coffee in milk, clarified with isinglass, and sweetened with Lisbon sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Coffee Milk

Why it works: Coffee and milk are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,202 recipes. Both carry 4-heptenal, which smells creamy, biscuit. The science ↓

Coffee Milk

Ingredients

Directions

Make the coffee milk

  1. Boil the ground coffee in the milk for about 15 minutes.

  2. Add the isinglass and stir to clear it, then let it boil for a few minutes before setting aside to cool.

Sweeten and serve

  1. Sweeten with real Lisbon sugar before serving.

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.

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.

  1. Coffee + milktop 10% of all pairs
    Smell alikemoderate
    Cooked together2,202 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

  2. Coffee + sugartop 17% of all pairs
    Smell alikelow
    Cooked together4,344 recipes

    Shared aroma: beta-damascenone (apple, rose).

  3. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

    Shared aroma: 2-nonenal (fatty, green).

Milk and sugar barely smell alike, yet cooks put them together in 77,875 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Milk
Forms the liquid base and gives the drink its body and creamy richness.
Ground coffee
Provides the main coffee flavour and aroma as it steeps in the hot milk.
Isinglass
Acts as a fining agent, binding suspended particles so they settle and the liquid clears.
Real lisbon sugar
Adds sweetness to balance the bitterness of the coffee.

The step that matters

Adding the isinglass. Isinglass works by binding the fine particles that cloud a liquid so they settle out. Only a small amount is needed, and it must be stirred in evenly so it can clear the milk properly.

“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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