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 ↓
Derbyshire Pudding
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the filling
Boil the potatoes, peel them, and mash to a smooth paste.
Add the butter, sugar, grated lemon rinds, cleaned currants, strained lemon juice, and beaten egg yolks.
Whip the egg whites to a stiff froth and gently fold into the mixture.
Assemble and bake
Grease a pie dish and layer the mixture to about 2 inches deep, creating a slight hollow in the center.
Add 1-2 spoonfuls of jam into the hollow and cover with the remaining potato mixture.
Bake in a moderate oven at 350°F (175°C) for about 25 minutes.
Serve immediately after baking.
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
- Potatoes
- Provide the bulk and a soft, moist body for the pudding.
- Butter
- Adds richness and a tender, moist texture.
- Eggs
- Yolks enrich and bind the mixture; whipped whites lighten it and help it rise.
- Lemons
- Rind and juice add aroma and a bright acidity that balances the sugar.
- Sugar
- Sweetens the pudding and helps brown the surface as it bakes.
- Jam
- Adds a sweet, fruity layer that softens and flavours the centre as it bakes.
The step that matters
Folding in the egg whites. Whites whipped to a stiff froth trap air that lifts the mixture. Folding gently keeps that air in; stirring hard deflates it and leaves the pudding dense.
Swap the currant
How well each one fits the dish's main ingredients (potato, butter, sugar, egg, lemon):
- Vanillafits better
- Orangefits better
- Figfits better
- Currantthe original
Fit is the average pairing score against potato, butter, sugar, 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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