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Dessert

Scotch Shortbread

A buttery shortbread made with flour, sugar, and butter, baked slowly until golden.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 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 ↓

Scotch Shortbread

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. Melt the butter in a small saucepan over low heat.

  2. In a large bowl, mix the flour and sugar together.

  3. Stir the hot butter into the flour mixture.

  4. Knead the mixture with your hands until it forms a firm, smooth paste.

  5. Roll the dough to about 1 inch thick and shape the edges with your thumb.

Bake and cut

  1. Carefully lift the dough into a baking tin lined with buttered parchment paper.

  2. If the tin is larger than the dough, pin the paper to fit to prevent spreading.

  3. Bake in a slow oven at 300°F (150°C) for about 1.5 hours or until cooked through.

  4. Cut into pieces while still hot.

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. Sugar + buttertop 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

All-purpose flour
Forms the structure of the shortbread as the dough sets during baking.
Unsalted butter
Provides fat for a tender, rich texture and helps bind the dough.
Caster sugar
Adds sweetness and contributes to the crisp, delicate texture and browning.

The step that matters

Pinning the paper to fit the tin. If the tin is larger than the dough, the butter-rich dough can spread and lose its shape during baking, so the paper should be pinned to fit the tin.

“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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