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Dessert

Rhubard Pie

A fruit pie made with rhubarb, sugar, egg, flour, and pie crusts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Rhubarb and flour 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 ↓

Rhubard 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).

  2. In a bowl, combine chopped rhubarb, sugar, beaten egg, and flour. Mix well until combined.

Assemble and bake

  1. Pour the filling into one pie crust and cover with the second crust.

  2. Bake until the crust is golden and the filling is bubbly.

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. Rhubarb + flourtop 7% of all pairs
    Smell alikestrong
    Cooked together670 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Rhubarb + sugartop 18% of all pairs
    Smell alikemoderate
    Cooked together1,852 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  5. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

Egg and flour barely smell alike, yet cooks put them together in 106,462 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

Rhubarb
Provides the tart flavour and the bulk of the filling.
Sugar
Sweetens the tart rhubarb and helps it soften as it bakes.
Egg
Binds the filling so it sets rather than running loose when baked.
Flour
Thickens the juices released by the rhubarb so the filling holds together.

The step that matters

Let the filling bubble fully. Flour thickens only when the filling gets hot enough to bubble. Pulling the pie early can leave a runny filling, because the starch has not fully gelatinised.

Swap the rhubarb

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

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

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