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Dessert

Pie-plant Pie

A simple rhubarb pie made with eggs, flour, sugar, butter, and pie-plant, 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: Flour and rhubarb match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 670 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Pie-plant 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.

Prepare

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

Make the filling

  1. In a bowl, beat the eggs, flour, sugar, and butter together until well combined.

  2. Add the finely cut pie-plant and mix thoroughly.

Assemble and bake

  1. Pour the mixture into a pie crust and cover with a second crust.

  2. Bake in the preheated oven until the crust is golden and the filling is set.

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. Flour + rhubarbtop 7% of all pairs
    Smell alikestrong
    Cooked together670 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

Flour and butter barely smell alike, yet cooks put them together in 124,287 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

Eggs
Bind the filling and set into a firm custard as the pie bakes.
Flour
Thickens the filling so it holds its shape when sliced.
Sugar
Sweetens the tart rhubarb and balances its acidity.
Butter
Adds richness and a tender texture to the filling.
Rhubarb
Supplies the tart flavor and most of the moisture in the filling.

The step that matters

Bake until the filling is set. Rhubarb releases liquid as it cooks, and the egg proteins only firm up once the filling is hot enough. Pulling the pie early leaves a runny filling that will not hold its shape when cut.

Swap the rhubarb

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

  1. Cinnamonfits better
  2. Nutmegfits better
  3. Jalapenofits better
  4. Rhubarbthe original

Fit is the average pairing score against egg, flour, sugar, butter. 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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