Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Strawberry Jelly
Ingredients
Directions
Prepare the juice
Place strawberries in an earthen pan and mash them with a wooden spoon.
Mix in powdered sugar.
Let the mixture infuse for 1 hour to draw out the juice.
Add water and lemon juice if needed to balance sweetness.
Strain the mixture through a clean bag to obtain clear juice.
Set the jelly
Mix melted isinglass with the cold juice.
Test the thickness by placing a spoonful in a mould over ice.
If thick enough, pour the mixture into a large mould over ice.
Cover the mould with ice (no salt).
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 + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Strawberries
- Provide the main flavour and colour of the jelly.
- Powdered sugar
- Adds sweetness and helps draw out juice from the mashed berries.
- Isinglass
- Gelling agent that sets the cold juice into a firm jelly.
- Lemon juice
- Adds acidity to balance sweetness in very ripe strawberries.
The step that matters
Testing the thickness before pouring. Isinglass sets as it cools, so a spoonful tested over ice shows whether the mixture is thick enough. Pouring too early may leave a runny jelly that will not hold its shape, while waiting too long may cause it to set unevenly in the mould.
“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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