Name: Rock Cakes
Ingredients: ½ pound butter; 1 pound flour; ½ pound sugar; 40 drops lemon essence; 2 eggs; ⅓ cup brandy

Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Rock Cakes

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

Preheat the oven to 350°F (175°C).

Make the dough

Cream the butter in a bowl.
Add the flour and sugar to the creamed butter.
Mix in the beaten eggs and brandy until combined.

Bake

Drop spoonfuls of the mixture onto baking trays.
Bake for 30 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.

Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + sugartop 15% of all pairs

Smell alikemoderate

Cooked together92,116 recipes

Shared aroma: phenylacetaldehyde (hawthorne, honey).
Butter + brandytop 15% of all pairs

Smell alikemoderate

Cooked together5,127 recipes

Shared aroma: ethyl octanoate (fruity, wine).
Flour + eggtop 15% of all pairs

Smell alikelow

Cooked together106,462 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + lemontop 16% of all pairs

Smell alikemoderate

Cooked together41,227 recipes

Shared aroma: 3-hexenal (apple, fruity).

Butter and flour 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

Butter: Creamed with sugar to trap air and give the cakes a rich, tender texture.
Flour: Provides the structure that holds the cakes together as they bake.
Sugar: Adds sweetness and, creamed with butter, helps lighten the dough.
Eggs: Bind the dough and add structure and moisture to the cakes.
Brandy: Adds moisture and aroma to the dough.