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Cracknels

Cracknels are small biscuit-like pastries made from flour, nutmeg, egg yolks, rose water, butter, and water, boiled then baked.

From an old cookbook · modernised transcription
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Why it works: Flour and nutmeg are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 18,623 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Cracknels

Ingredients

Directions

Prepare the dough

  1. Mix flour and grated nutmeg in a bowl.

  2. Beat the egg yolks and add rose water in another bowl.

  3. Combine the egg mixture with the flour to form a stiff paste, adding cold water as needed.

  4. Incorporate the butter into the paste and shape into cracknel forms.

Boil, dry and bake

  1. Boil in a kettle of water until they float, then transfer to cold water to harden.

  2. Lay out to dry and bake on tin plates.

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 + nutmegtop 8% of all pairs
    Smell alikemoderate
    Cooked together18,623 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Nutmeg + rosetop 15% of all pairs
    Smell alikemoderate
    Cooked together1,067 recipes

    Shared aroma: methyleugenol (clove, spice).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Nutmeg + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together24,377 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

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 firm, crisp body when baked.
Egg yolks
Add richness and binding, helping the paste hold its shape.
Butter
Adds fat for tenderness and a rich texture in the finished cracknels.
Rose water
Contributes a floral aroma to the dough.

The step that matters

Boil until they float, then harden in cold water. Boiling gelatinises the starch on the surface, so the shapes set and keep their form. Stopping the cooking in cold water firms the outside, which helps the cracknels dry and bake crisp rather than soft or misshapen.

“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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