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Dessert

Coffee Mousse

A chilled dessert made with cream, coffee, gelatin, milk, sugar, and egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Cream and gelatin match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,628 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Coffee Mousse

Ingredients

Directions

Make the mousse base

  1. Soak gelatin in milk for ½ hour.

  2. Add boiled coffee and sugar to the soaked gelatin and strain.

  3. Fold in the beaten egg whites.

Finish and chill

  1. When the mixture is partly thick, gently fold in the whipped cream.

  2. Pour into a mold and refrigerate for 3 to 4 hours.

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. Cream + gelatintop 7% of all pairs
    Smell alikestrong
    Cooked together1,628 recipes

    Shared aroma: acetic acid (sour, vinegar).

  2. Gelatin + sugartop 7% of all pairs
    Smell alikemoderate
    Cooked together2,778 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Cream + sugartop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

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

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

  5. Cream + coffeetop 17% of all pairs
    Smell alikelow
    Cooked together2,339 recipes

    Shared aroma: 2-heptanol (bitter, floral).

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

What each ingredient does

Cream
Whipped into the mixture to add lightness and a creamy, airy texture.
Gelatin
Sets the liquid mixture so the mousse holds its shape when chilled.
Egg whites
Beaten to foam, adding air that gives the mousse its light, fluffy structure.
Coffee
Provides the main flavor and a slight bitterness that balances the sugar.
Sugar
Adds sweetness and helps balance the bitterness of the coffee.

The step that matters

Fold in the whipped cream when the mixture is partly thick. If the base is too runny, the cream and egg whites deflate and the mousse loses its airy texture; if it has already set, the cream will not blend in evenly. Gentle folding keeps the trapped air intact.

“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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