Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Lemon Jelly
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the jelly
Dissolve the sugar and corn starch in the lemon flavor.
Cook the mixture as you would for boiled custards.
Once cooked, pour into an earthen dish and let cool.
Top and bake
Beat the egg white with 2 tablespoons of sugar until stiff.
Spread the egg white mixture over the top of the jelly.
Place in a 350°F (175°C) oven and brown slightly.
Serve
Serve with cream and sugar.
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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Corn + lemontop 13% of all pairsSmell alikemoderateCooked together1,927 recipes
Shared aroma: 2-nonenal (fatty, green).
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Corn + coffeetop 15% of all pairsSmell alikemoderateCooked together247 recipes
Shared aroma: 2-nonenal (fatty, green).
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Coffee + creamtop 17% of all pairsSmell alikelowCooked together2,339 recipes
Shared aroma: 2-heptanol (bitter, floral).
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Coffee + sugartop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Corn starch
- Thickens the water and sugar mixture into a set, spoonable jelly as it cooks.
- Egg white
- Whips into a stiff foam that forms a light topping and browns in the oven.
- Sugar
- Sweetens the jelly and, whipped with the egg white, stabilizes the meringue topping.
The step that matters
Cooking the corn starch mixture. Corn starch only thickens fully when the mixture reaches a boil and is stirred, so undercooking leaves the jelly thin and runny instead of set.
Swap the lemon
How well each one fits the dish's main ingredients (corn, coffee, sugar, egg, cream):
- Vanillafits better
- Coconutfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against corn, coffee, sugar, egg, cream. 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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