Why it works: Rhubarb and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 1,852 recipes. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓
Rhubarb Isinglass Jellt
Ingredients
Directions
Prepare the rhubarb
Wash and slice the rhubarb without peeling, removing any coarse or discolored parts.
In an enamelled stewpan, combine the rhubarb and water, then add the sugar.
Boil gently for 20 minutes until the rhubarb is stewed but not thickened.
Strain the mixture through a folded muslin cloth and measure 1½ pints of the juice.
Make the jelly
In a clean pan, heat the juice and add the isinglass and sugar.
Stir frequently until the isinglass is fully dissolved, then boil quickly for a few minutes to remove scum.
Carefully strain the jelly twice through a muslin strainer, let it cool, and then mold it as desired.
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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Rhubarb + sugartop 18% of all pairsSmell alikemoderateCooked together1,852 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Provides the tart flavour and pink colour that define the jelly.
- Isinglass
- Gelatine-like setting agent that firms the strained juice into a jelly.
- Sugar
- Sweetens the juice and balances the tartness of the rhubarb.
The step that matters
Stir until the isinglass is fully dissolved, then boil briefly. If isinglass is not completely dissolved, it can leave specks and weaken the set. A brief rapid boil removes scum so the jelly is clear. Stirring frequently helps the setting agent disperse evenly through the hot juice.
“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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