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Dessert

Rhubarb Tart

A baked tart filled with sliced rhubarb, sweetened with powdered sugar and lemon juice, topped with a sweet pastry crust and sprinkled sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Rhubarb and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 546 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Rhubarb Tart

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the filling

  1. Peel the skins from old or stale rhubarb; leave fresh rhubarb unpeeled.

  2. Cut the rhubarb into small pieces to fill a tart dish.

  3. Sweeten the rhubarb with powdered loaf sugar according to the size of the dish. Add the juice of ½ lemon and mix well.

Assemble and bake

  1. Cover the mixture with sweet paste (pie crust). Sprinkle a little sugar over the top.

  2. Bake in a hot oven at 400°F (200°C) for 30 to 45 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 + lemontop 7% of all pairs
    Smell alikestrong
    Cooked together546 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

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

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

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

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

Rhubarb
Provides the main filling and its sharp, tart flavour.
Loaf sugar
Sweetens the tart filling and balances the rhubarb's acidity.
Lemon juice
Adds extra acidity that brightens the flavour of the rhubarb.
Sweet paste (pie crust)
Encloses the filling and forms the baked, browned tart base.

The step that matters

Peeling old or stale rhubarb. Old or stale rhubarb has tougher, more fibrous skins that can taste bitter and toughen the texture, so peeling them improves the filling.

Swap the rhubarb

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

  1. Cinnamonfits better
  2. Gingerfits better
  3. Marjoramfits better
  4. Rhubarbthe 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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