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Dessert

Derby Biscuits

A biscuit made with flour, brown sugar, ammonia, lard, currants, lemon essence, and milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Derby Biscuits

Oven, in the book's wordsA quick oven

Ingredients

Directions

The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the dough

  1. Mix flour, brown sugar, and ammonia in a bowl.

  2. Rub in the lard with your hands until well combined.

  3. Add currants, essence of lemon, and just enough milk to form a dough.

Shape and bake

  1. Shape the dough and cut into biscuits.

  2. Bake in a preheated oven at 400°F (200°C) until 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 + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 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. Lemon + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Currant + milktop 16% of all pairs
    Smell alikelow
    Cooked together5,475 recipes

    Shared aroma: isoamyl acetate (banana, pear).

  5. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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
Provides the structure that holds the biscuits together as they bake.
Lard
Coats the flour particles, keeping the biscuits short and tender rather than tough.
Ammonia
Releases gas as it bakes, helping the biscuits rise and turn crisp.
Brown sugar
Adds sweetness and moisture, and helps the biscuits brown.

The step that matters

Adding the milk. Add only enough milk to bring the dough together. Too much makes it sticky and hard to shape, while overworking the dough develops gluten and makes the biscuits tough.

Swap the currant

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

  1. Vanillafits better
  2. Raisinfits better
  3. Blueberryfits better
  4. Currantthe original

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