Why it works: Lemon and potato are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 2,230 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Potato Cheese-cakes
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Grate the thin rind of the lemons.
Pound the lemon rind with the sugar and boiled potato until well combined.
Stir in the clarified butter until smooth.
Add the egg yolks and egg white, mixing well.
Bake
Line tart tins with the light crust and fill them more than halfway with the mixture.
Bake in a 400°F (200°C) oven for about 20 minutes.
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 + potatotop 12% of all pairsSmell alikemoderateCooked together2,230 recipes
Shared aroma: 2-nonenal (fatty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + eggtop 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Boiled potato
- Gives the filling body and a soft, moist, tender texture.
- Clarified butter
- Adds fat for richness and a smooth, tender texture.
- Egg yolks
- Enrich the filling and help it set as it bakes.
- Egg white
- Adds structure and helps the filling set and hold its shape.
- Sugar
- Adds sweetness and helps the filling brown lightly in the oven.
- Lemons
- Provide fragrant aroma and bright acidity from the grated rind.
Swap the potato
How well each one fits the dish's main ingredients (lemon, sugar, butter, egg):
- Asparagusfits better
- Leekfits better
- Shallotfits better
- Potatothe original
Fit is the average pairing score against lemon, sugar, butter, egg. 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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