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Dessert

Threadneedle Street Biscuits

A simple biscuit made with flour, butter, sugar, milk, optional soda and caraway seeds.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Threadneedle Street Biscuits

Oven, in the book's wordsA very slow oven

Ingredients

Directions

The book says “a very slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 300°F (150°C).

Make the dough

  1. Mix the flour and butter until it resembles small crumbs.

  2. Add the sugar and combine with enough milk to form a firm paste.

  3. Beat the mixture with a rolling pin until smooth.

Shape and bake

  1. Roll out the dough to ⅓ inch thick and cut into small squares.

  2. Bake the biscuits in the slow oven until crisp throughout.

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

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

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  5. 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

Flour
Forms the structure of the dough, setting into a crisp, sturdy biscuit when baked.
Butter
Adds fat that shortens the dough, giving a tender, crumbly texture.
Sugar
Adds sweetness and helps the biscuits brown lightly as they bake.
Milk
Moistens the flour so the dough binds into a firm, workable paste.

The step that matters

Beat the mixture with a rolling pin until smooth. Working the firm paste until smooth develops the dough evenly, so the biscuits bake to an even crispness rather than breaking or baking unevenly.

“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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