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Dessert

Rock Cakes

A baked biscuit with flour, butter, currants, raisins, sugar, mixed peel, spices, egg, milk, and baking powder.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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Rock Cakes

Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Rock Cakes

8 to 10 buns
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.

Prepare

  1. Clean the currants and raisins with a little flour using a cloth.

  2. Chop the mixed peel.

  3. Lightly rub the dripping into the flour.

  4. Mix in all the dry ingredients.

  5. Beat the egg.

Make and shape the dough

  1. Mix the egg into the other ingredients with just enough milk to moisten them.

  2. Arrange the mixture on a greased flat baking sheet.

  3. Use two forks to shape; this should make 8 to 10 buns.

  4. Brush the tops with milk.

Bake

  1. Bake in a preheated oven at 400°F (200°C) for 15 to 20 minutes.

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.

Photo for illustrative purposes only · Contact us to use it

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 + raisintop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Ginger + nutmegtop 5% of all pairs
    Smell alikestrong
    Cooked together3,324 recipes

    Shared aroma: estragole (anise, licorice).

  3. Raisin + nutmegtop 6% of all pairs
    Smell alikemoderate
    Cooked together5,377 recipes

    Shared aroma: alpha-terpineol (lilac, floral).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Currant + raisintop 10% of all pairs
    Smell alikelow
    Cooked together6,180 recipes

    Shared aroma: gamma-nonanolactone (coconut, creamy).

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 buns together as they bake.
Dripping
Rubbed into the flour, it gives the buns a short, tender crumb.
Baking powder
Releases gas during baking, helping the buns rise and stay light.
Egg
Binds the dough and adds structure and richness.
Milk
Moistens the dough so it holds together, and brushing the tops helps them brown.
Sugar
Adds sweetness and helps the tops brown in the oven.

The step that matters

Adding just enough milk. Too much liquid makes the dough sticky and spreading, while too little leaves it dry and crumbly. Adding milk gradually until the mixture just holds together gives buns that keep their rocky shape.

Swap the currant

How well each one fits the dish's main ingredients (flour, butter, raisin, sugar, ginger, nutmeg, egg):

  1. Lemonfits better
  2. Vanillafits better
  3. Figfits better
  4. Currantthe original

Fit is the average pairing score against flour, butter, raisin, sugar, ginger, nutmeg, egg. 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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