Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Hartshorn Jelly
Ingredients
Directions
Simmer hartshorn shavings in water until reduced to 1 quart.
Strain the mixture.
Boil the strained liquid with the rinds of the oranges and lemons.
Let it cool before pouring into a mold.
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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Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hartshorn shavings
- Sets the liquid into a firm jelly as it cools.
- China oranges
- Adds citrus aroma and flavor from the rinds as the liquid boils.
- Lemons
- Adds bright citrus aroma and a touch of acidity from the rinds.
The step that matters
Let it cool before pouring into a mold. Hartshorn sets as it cools, so the liquid must be cooled enough to hold its shape in the mold. Pouring too early can cause a soft or uneven set, while waiting until it is nearly cold helps it firm evenly.
“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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