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
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Cream the butter and sugar together until light and fluffy.
Beat well, then work in the flour until combined.
Cut 4 strips of candied peel for decoration and chop the remainder. Mix the chopped candied peel into the shortbread mixture.
Shape and bake
Form the mixture into a round cake and crimp the edges.
Place on a greased baking tin lined with white paper.
Bake in a hot oven at 400°F (200°C) until golden brown.
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.
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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 that holds the shortbread together as it bakes.
- Sugar
- Adds sweetness and helps the shortbread brown as it bakes.
- Candied peel
- Adds bright sweetness and aroma, and decorates the top of the shortbread.
The step that matters
Creaming the butter and sugar. Beating butter and sugar until light and fluffy traps air in the fat, which helps the shortbread stay tender. Under-creaming leaves a dense texture.
“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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