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Dessert

Crisp Plain Biscuits

A simple biscuit made from flour, egg yolk, milk, and salt, baked until crisp.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Crisp Plain Biscuits

Oven, in the book's wordsA slow oven

Ingredients

Directions

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

  1. Knead the flour, egg yolk, milk, and salt into a stiff paste.

  2. Ensure the mixture is smooth, then cut it into biscuit shapes.

  3. Bake in a slow oven at 300°F (150°C) until crisp.

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 + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

    Shared aroma: 2-nonenal (fatty, 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

All-purpose flour
Provides the starch and gluten network that gives the biscuits their structure.
Egg yolk
Adds fat and emulsifiers that enrich the dough and help bind it smoothly.
Milk
Supplies moisture that hydrates the flour so the dough can form a paste.

The step that matters

Bake in a slow oven until crisp. A low oven dries the biscuits gradually, so they become crisp throughout rather than browning on the outside while staying soft inside. Bake until they feel firm and crisp, since underbaked biscuits stay soft and overbaked ones turn hard and brittle.

“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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