Why it works: Lemon and fennel match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 723 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Swiss Cakes
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the batter
Separate the egg whites and yolks into different bowls and beat them until frothy.
Combine the beaten whites and yolks, then gradually stir in the pulverized sugar.
Beat the mixture well for 15 minutes.
Grate the lemon into the mixture and add the fennel or coriander seed.
Bake and serve
Drop tablespoonfuls of the mixture onto a well-greased baking tin.
Dredge the tops with pulverized sugar and bake immediately in a hot oven at 400°F (200°C).
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 + fenneltop 1% of all pairsSmell alikestrongCooked together723 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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
- Eggs
- Whites trap air when beaten and yolks add richness, giving the cakes their structure and tender crumb.
- Pulverized sugar
- Sweetens the batter and, when beaten with the eggs, helps stabilise the foam and adds a crisp top.
- Lemon
- Adds bright acidity and aroma from the zest in the batter.
- Fennel or coriander seed
- Contributes a warm, aromatic flavour to the batter.
The step that matters
Beat the mixture well for 15 minutes. Long beating incorporates air into the egg foam, which provides the lift these cakes rely on since they contain no raising agent. Under-beaten batter will bake flat and dense.
Swap the fennel
How well each one fits the dish's main ingredients (egg, sugar, lemon, butter):
- Cinnamonfits better
- Nutmegfits better
- Parsleyfits better
- Fennelthe original
Fit is the average pairing score against egg, sugar, lemon, butter. 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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