Why it works: Potato and lemon 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 Cheesecakes
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
Preheat the oven to 400°F (200°C).
Make the filling
In a bowl, mix the mashed potatoes with currants, sugar, candied peel, beaten eggs, and butter until well combined.
Flavor the mixture with a few drops of lemon or vanilla essence.
Bake
Line patty tins with short crust pastry.
Drop a teaspoonful of the mixture into each lined tin.
Bake for about 15 minutes until golden brown.
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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Potato + lemontop 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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + curranttop 17% of all pairsSmell alikemoderateCooked together7,856 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mashed potatoes
- Provide the bulk and a soft, moist body to the filling.
- Eggs
- Bind the mixture and help it set as it bakes.
- Butter
- Adds richness and moisture to the filling.
- Castor sugar
- Adds sweetness and helps the top brown during baking.
- Currants
- Add chewy pockets of fruit sweetness throughout the filling.
The step that matters
Bake until golden brown. The filling is soft and set mainly by the eggs, so underbaking leaves it wet in the middle, while overbaking dries it out and darkens the pastry too much. Watch the color closely near the 15-minute mark.
Swap the currant
How well each one fits the dish's main ingredients (potato, sugar, butter, egg, lemon):
- Vanillafits better
- Orangefits better
- Figfits better
- Currantthe original
Fit is the average pairing score against potato, sugar, butter, 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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