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
Soak the gelatin in ¼ cup cold water for 1-2 hours.
Make the jelly
Heat the coffee until hot and stir in the soaked gelatin until melted.
Add the sugar and stir until it dissolves.
Mix in the vanilla.
Pour the mixture into a mold and refrigerate until it stiffens.
If no mold is available, pour into a shallow dish to set about 1 inch deep.
Serve
When ready to serve, cut into half-inch blocks and arrange in a serving dish.
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.
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Sugar + gelatintop 7% of all pairsSmell alikemoderateCooked together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Vanilla + coffeetop 9% of all pairsSmell alikemoderateCooked together1,391 recipes
Shared aroma: sotolon (curry, maple).
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Vanilla + gelatintop 17% of all pairsSmell alikelowCooked together924 recipes
Shared aroma: maltol (caramel, sweet).
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Sugar + coffeetop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Gelatin
- Sets the coffee liquid into a firm, wobbly jelly when chilled.
- Sugar
- Adds sweetness that balances the bitterness of the coffee.
- Strong coffee
- Provides the main flavour and liquid base of the jelly.
The step that matters
Melting the gelatin into the hot coffee. Gelatin must be fully dissolved, not left in lumps, or the jelly will set unevenly and feel gritty. Soaking it first helps it hydrate and dissolve smoothly in warm liquid.
“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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