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 Pudding
Ingredients
Directions
Prepare the potato
Boil the potatoes until white, mealy, and very tender.
Rub the potatoes through a colander while hot.
Mix the hot potato with the butter until well combined.
Make the custard
In a separate bowl, beat the egg yolks with the sugar until smooth.
Add the lemon rind and juice to the egg mixture.
Gently fold in the beaten egg whites.
Combine the potato mixture with the egg mixture.
Bake and serve
Pour into pie plates lined with pie crust.
Bake until set.
Eat cold.
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 + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 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
- Potatoes
- Give the pudding its body and a smooth, mealy texture when pushed through a colander.
- Butter
- Adds richness and fat, giving the pudding a tender, smooth mouthfeel.
- Egg yolks
- Enrich the filling and help it set into a custard when baked.
- Egg whites
- Folded in whipped to lighten the mixture and add airy structure.
- Fine sugar
- Sweetens the pudding and helps create a smooth, tender custard.
- Lemon
- Its rind and juice add aroma and a bright acidity that balances the sweetness.
The step that matters
Gently fold in the beaten egg whites. Egg whites hold air only while whipped; overmixing or deflating them makes the pudding dense rather than light, so fold gently to keep the bubbles intact.
Swap the potato
How well each one fits the dish's main ingredients (butter, egg, sugar, lemon):
- Asparagusfits better
- Leekfits better
- Shallotfits better
- Potatothe original
Fit is the average pairing score against butter, egg, sugar, 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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