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Dessert

Coffee Jelly

A chilled dessert made from coffee, sugar, and gelatin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and gelatin are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,778 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Coffee Jelly

Ingredients

Directions

Prepare

  1. Hydrate the gelatin in cold water.

Make the coffee mixture

  1. In a saucepan, combine coffee and boiling water, and bring to a boil.

  2. Dissolve the gelatin over steam from a kettle or in hot water, then add it to the coffee mixture along with the sugar.

Set

  1. Pour into a mold and refrigerate until set.

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. Sugar + gelatintop 7% of all pairs
    Smell alikemoderate
    Cooked together2,778 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

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

  3. Coffee + gelatintop 18% of all pairs
    Smell alikelow
    Cooked together146 recipes

    Shared aroma: maltol (caramel, sweet).

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

What each ingredient does

Gelatin
Sets the liquid into a firm, wobbly jelly as it cools.
Coffee
Provides the flavor and dark color of the jelly.
Sugar
Sweetens the coffee and balances its bitterness.

The step that matters

Dissolve the gelatin fully before adding it to the coffee. Gelatin must melt completely to set evenly. Undissolved granules leave gritty or weak spots, and the mixture should not boil once the gelatin is added, since overheating weakens its setting power.

“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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