Why it works: Lemon and sugar 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 ↓
Carrageen Jelly
Ingredients
Directions
Prepare the moss
Wash and soak the Iceland moss in cold water for several hours.
Make the jelly
Place the moss in a saucepan with the cold water and simmer slowly for five hours.
Strain the mixture.
Add the lemon juice and sugar to taste.
Pour the mixture into small cups or glasses that have been dipped in water.
Set aside until cold.
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.
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar 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
- Iceland moss
- Carrageen is a seaweed whose gums dissolve in hot water and set into a jelly as it cools.
- Lemon juice
- Adds acidity that brightens the flavour and balances the sweetness of the sugar.
- Sugar
- Adds sweetness, balancing the lemon juice and the mild taste of the moss.
The step that matters
Simmer slowly for five hours. Carrageen gums need prolonged gentle heat to fully dissolve and release their setting power. A rapid boil can break down the gums and weaken the jelly, while too little time leaves it unset.
“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.
You might also like
Lemon Cake228 recipes
Lemon Ice147 recipes
Lemon Sherbet103 recipes
Lemon Custard64 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.