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Dessert

Scotch Shortbread

A buttery shortbread made with butter, sugar, flour, ground rice, baking powder, eggs, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and flour 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 moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Make the dough

  1. Cream the butter and sugar together.

  2. Add the beaten eggs and mix well.

  3. In a separate bowl, combine the flour, ground rice, baking powder, and salt.

  4. Gradually work the dry ingredients into the butter mixture to form a stiff dough.

Shape and bake

  1. Divide the dough and roll it out to about ½ inch thick.

  2. Pinch the edges with your fingers and thumb, then prick the surface evenly with a fork.

  3. Optionally, decorate with candied peel or comfits before baking.

  4. Bake on a tray lined with white paper in a 350°F (175°C) oven for about 30 minutes or until light golden.

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + ricetop 16% of all pairs
    Smell alikemoderate
    Cooked together9,645 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  5. Rice + flourtop 16% of all pairs
    Smell alikemoderate
    Cooked together6,611 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

Butter
Provides fat and richness, giving the shortbread its tender, crumbly texture.
Flour
Forms the structure of the dough once combined with the butter and sugar.
Sugar
Adds sweetness and helps the shortbread brown lightly during baking.
Eggs
Bind the mixture and add moisture and richness to the dough.
Ground rice
Gives a slightly sandy, crisp texture that shortens the flour's gluten development.
Baking powder
Adds a little lift so the shortbread bakes up light rather than dense.

The step that matters

Working the dry ingredients into the butter. Adding the flour mixture gradually and mixing only until a stiff dough forms keeps the dough tender. Overworking develops gluten, which makes shortbread tough rather than crumbly.

“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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