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
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the filling
Beat the boiled and peeled potatoes in a bowl with the butter.
In a separate bowl, beat the boiled lemon peel until smooth.
Add the lemon juice to the lemon peel and mix with the potatoes.
Incorporate the egg yolks and egg whites, adding sugar to taste.
Bake
Transfer the mixture into a dish with a crust around the edge.
Bake in a 300°F (150°C) oven until set.
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
- Provide the starchy bulk that gives the pudding its soft, thick body.
- Butter
- Adds richness and fat, giving a smooth, tender texture.
- Egg yolks
- Enrich the custard and help the pudding set when heated.
- Egg whites
- Add structure and lightness, helping the pudding hold its shape as it sets.
- Lemon juice
- Adds acidity that brightens the flavour and balances the sweetness.
The step that matters
Bake until set. Eggs set as their proteins coagulate with heat. Too hot or too long leaves the pudding curdled, dry or weeping, so check for a firm centre rather than relying on time alone.
Swap the potato
How well each one fits the dish's main ingredients (butter, lemon, egg, sugar):
- Asparagusfits better
- Leekfits better
- Shallotfits better
- Potatothe original
Fit is the average pairing score against butter, lemon, egg, sugar. 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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