Why it works: Lemon and raspberry are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,109 recipes. Both carry alpha-pinene, which smells pine, turpentine. The science ↓
Lemon Spunge
Ingredients
Directions
Make the sponge
Boil isinglass in water until dissolved, then strain.
The next day, add lemon juice and grated peel to the isinglass.
Rub raspberry jam through a sieve into the isinglass and whisk until fluffy.
Pour into an earthen mould and refrigerate for several hours.
Serve
Turn out to serve.
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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Lemon + raspberrytop 8% of all pairsSmell alikemoderateCooked together1,109 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Raspberry + sugartop 21% of all pairsSmell alikelowCooked together3,101 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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
- Isinglass
- Gelatin-like setting agent that firms the liquid into a sponge that holds its shape.
- Lemon juice
- Adds acidity and bright lemon flavour to the set mixture.
- Raspberry jam
- Adds sweetness, fruit flavour and colour to the sponge.
The step that matters
Whisking the set mixture until fluffy. Whisking must happen while the isinglass mixture is cooled but still liquid enough to trap air. Whisking it too early or too late stops it foaming into a light, airy sponge.
Swap the raspberry
How well each one fits the dish's main ingredients (lemon, sugar):
- Orangefits better
- Limefits better
- Vanillafits better
- Raspberrythe original
Fit is the average pairing score against lemon, sugar. Candidates are from the same food group and used in at least 100 recipes.
“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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