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Dessert

Rhubarb Tart

A baked tart with rhubarb filling and a butter‑flour crust.

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 ↓

Rhubarb Tart

Oven, in the book's wordsA quick oven

Ingredients

Directions

The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the filling

  1. Remove the skin from the rhubarb and cut it into pieces.

  2. Half fill a pie dish with the rhubarb and sprinkle with sugar.

Make the crust

  1. Rub the butter into the flour, then add sugar and salt.

  2. Add enough water to make a firm paste.

  3. Roll out the paste to ¼ inch thick.

  4. Line the edge of the pie dish with the crust.

  5. Cover the filling with the crust.

  6. Notch the edges.

  7. Brush with egg.

  8. Sprinkle with sugar.

Bake

  1. Bake in a 400°F (200°C) oven for 40 minutes.

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. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

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

Butter and flour 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

Rhubarb
Provides the tart filling and its sharp, tangy flavour.
Butter
Adds fat and richness, making the crust tender and flaky.
Self-raising flour
Forms the structure of the crust once mixed with water.
Castor sugar
Sweetens the filling and helps balance the rhubarb's tartness.

The step that matters

Enough water for the paste. Too little water leaves the crust dry and crumbly, while too much makes it tough, because gluten develops as the flour is worked. The paste should be firm but hold together.

Swap the rhubarb

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

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

Fit is the average pairing score against butter, sugar, 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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