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Dessert

Scotch Shortbread

A buttery, sweet shortbread with lemon zest and caraway seed topping.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and caraway match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 1,435 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Scotch Shortbread

Oven, in the book's wordsA moderately quick oven

Ingredients

Directions

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

Prepare

  1. Cream the butter in a large bowl.

  2. Add the sugar and stir until the mixture is light and fluffy.

  3. Mix in the lemon zest and a little milk to achieve a smooth consistency.

  4. Gradually add the flour to form a soft dough, but do not make it too stiff.

Shape and bake

  1. Shape the dough into squares or ovals, about 1 inch thick.

  2. Prick the tops with a fork and sprinkle caraway seeds on top.

  3. Bake in a moderate oven at 350°F (175°C) until lightly 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. Flour + carawaytop 6% of all pairs
    Smell alikestrong
    Cooked together1,435 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Lemon + carawaytop 10% of all pairs
    Smell alikestrong
    Cooked together270 recipes

    Shared aroma: decanal (soap, orange peel).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 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 for a rich, tender texture and flavour.
Sugar
Adds sweetness and helps the mixture cream to a light, fluffy texture.
Flour
Forms the structure of the dough as it is gradually added.
Lemon zest
Adds aromatic citrus flavour to the dough.

The step that matters

Gradually add the flour to form a soft dough. Adding too much flour or overworking it makes the dough stiff, which produces a tough rather than tender shortbread. Adding it gradually lets you stop once the dough just holds together.

Swap the lemon

How well each one fits the dish's main ingredients (butter, sugar, flour, milk, caraway):

  1. Raisinfits better
  2. Vanillafits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against butter, sugar, flour, milk, caraway. 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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