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Dessert

Digestive Biscuits

A simple biscuit made from brown meal, flour, butter or lard, sugar, and water, baked at 300°F.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Digestive Biscuits

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.

Make the dough

  1. Mix the brown meal and flour together.

  2. Rub in the butter or lard and the sugar.

  3. Mix into a dry paste with water and knead until smooth.

Shape and bake

  1. Roll out very thin, cut into rounds, and bake in a slow oven at 300°F (150°C).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: guaiacol (smoky, sweet).

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

Brown meal
Gives the biscuits their coarse, hearty body and nutty, wholesome flavour.
Flour
Provides structure so the dough holds its shape when rolled and cut.
Butter or lard
Rubbed into the flour to coat it, giving a crumbly, tender, short texture.
Sugar
Adds sweetness and helps the biscuits brown lightly in the oven.

The step that matters

Roll out very thin. Thin dough bakes quickly and dries into a crisp, short biscuit; thicker pieces stay soft and dense in the middle.

“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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