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 ↓
Nut Frosting
Ingredients
Directions
Make the syrup
Combine sugar and water in a saucepan.
Cook over medium heat until the mixture reaches a soft ball stage.
Finish the frosting
Beat the egg white until stiff peaks form.
Gradually pour the hot sugar mixture into the beaten egg white while continuing to beat.
Add lemon flavoring and mix well.
Fold in the coarsely chopped nuts until evenly distributed.
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).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Lemon + nutstop 20% of all pairsSmell alikemoderateCooked together470 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + nutstop 25% of all pairsSmell alikelowCooked together2,228 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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
- Sugar
- Dissolves into the water and cooks to a syrup that sets and sweetens the frosting.
- Egg white
- Whips into a foam that gives the frosting its light, airy structure.
- Nuts
- Add crunch and texture to the frosting.
The step that matters
Gradually pour the hot sugar mixture into the beaten egg white while continuing to beat. Pouring the syrup in slowly while beating lets it cook the egg white gently and build a stable, glossy foam. Pouring it all at once can deflate the whites or leave lumps of cooked sugar.
Swap the nuts
How well each one fits the dish's main ingredients (sugar, egg, lemon):
- Pistachiofits better
- Milletfits better
- Almondfits better
- Nutsthe original
Fit is the average pairing score against sugar, egg, lemon. 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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