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 ↓
Silver Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the filling
Preheat the oven to 350°F (175°C).
In a bowl, combine the grated potato, lemon juice, lemon peel, beaten egg white, sugar, and cold water.
Pour the mixture into a pie crust and bake until set.
Top and serve
In another bowl, beat the egg whites to a stiff froth, then gradually add ½ cup sugar until glossy.
Spread the meringue over the baked pie and brown it in the oven.
Just before serving, top with small pieces of jelly.
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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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Potato + eggtop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potato
- Its grated starch thickens the filling as it bakes, giving it body.
- Lemon
- The juice adds sharp acidity and the peel adds fragrant citrus aroma.
- Egg white
- Beaten egg white helps the filling set into a sliceable custard.
- Sugar
- Sweetens the filling and helps stabilize the whipped meringue foam.
- Egg whites
- Whipped into a foam, they bake into a light meringue that browns on top.
The step that matters
Adding the sugar to the meringue. Beat the whites to a stiff froth first, then add the sugar gradually. Sugar dissolved slowly into the foam stabilizes it, so the meringue turns glossy and holds its peaks instead of weeping or collapsing in the oven.
Swap the potato
How well each one fits the dish's main ingredients (lemon, egg, sugar):
- Asparagusfits better
- Arrowrootfits better
- Sweet potatofits better
- Potatothe original
Fit is the average pairing score against 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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