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Dessert

Lemon-potato Pie

A sweet pie made with grated potato, sugar, lemon zest, lemon juice, and water, baked in a double crust.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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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 ↓

Lemon-potato 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

  1. Preheat the oven to 350°F (175°C).

Make the filling

  1. In a bowl, combine the grated potato, sugar, lemon zest, lemon juice, and water.

  2. Pour the mixture into a pie crust.

Assemble and bake

  1. Cover with the second pie crust and seal the edges.

  2. Bake for 30-40 minutes or until the crust is golden brown.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Potato + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together2,230 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Potato + sugartop 30% of all pairs
    Smell alikelow
    Cooked together3,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

Sugar and lemon 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

Raw potato
Grated potato supplies the starchy body that thickens the filling as it bakes.
Sugar
Provides sweetness that balances the sharpness of the lemon.
Lemon
Zest and juice supply the main aroma and acidity of the filling.
Pie crusts
Enclose the filling and brown on the outside during baking.

The step that matters

Bake until the crust is golden brown. The filling is enclosed, so the crust's colour is the visible sign of doneness. Pulling the pie too early can leave the filling loose and the pastry pale and underbaked.

Swap the potato

How well each one fits the dish's main ingredients (sugar, lemon):

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Kalefits better
  4. Potatothe original

Fit is the average pairing score against 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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