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Dessert

Tapioca and Rhubarb Pudding

A baked pudding made with tapioca, rhubarb, milk, eggs, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Rhubarb and arrowroot share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 12 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Tapioca and Rhubarb Pudding

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Soak the tapioca in cold water for 2 hours.

  2. Cut the rhubarb into pieces.

  3. Mix the rhubarb, tapioca, and sugar in a pudding dish.

Bake

  1. Bake in a slow oven at 300°F (150°C) until cooked.

Make the custard

  1. Make a custard with the egg yolks and milk.

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 + arrowroottop 1% of all pairs
    Smell alikestrong
    Cooked together12 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Milk + arrowroottop 18% of all pairs
    Smell alikemoderate
    Cooked together817 recipes

    Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

  3. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

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

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

  5. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Milk and sugar barely smell alike, yet cooks put them together in 77,875 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

Tapioca
Starch that swells and thickens the pudding as it cooks.
Rhubarb
Adds tartness and moisture that balance the sweetness.
Milk
Forms the liquid base of the custard and adds creaminess.
Eggs
Egg proteins set the custard and add richness.
Arrowroot
Starch that thickens the liquid and gives a glossy texture.

The step that matters

Baking until fully cooked. Tapioca starch only becomes soft and translucent once its granules have fully swollen and gelatinized in heat. Pulling the pudding early leaves firm, chalky grains and a thin, uneven texture.

Swap the rhubarb

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

  1. Cinnamonfits better
  2. Nutmegfits about as well
  3. Rhubarbthe original
  4. Capersfits about as well

Fit is the average pairing score against milk, sugar, egg, arrowroot. 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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