Why it works: Almond and cinnamon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 3,514 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓
Rock Cakes
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat your oven to 300°F (150°C).
Make and shape the dough
In a bowl, mix the chopped almonds, cinnamon, and powdered sugar.
Add the egg whites and mix until well combined.
Form the mixture into small steeple shapes.
Bake
Place them on buttered baking pans.
Bake in the preheated oven until set.
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.
-
Almond + cinnamontop 1% of all pairsSmell alikestrongCooked together3,514 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Cinnamon + sugartop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Almond + sugartop 18% of all pairsSmell alikemoderateCooked together15,679 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
-
Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Almond + eggtop 25% of all pairsSmell alikemoderateCooked together12,645 recipes
Shared aroma: 2,4-decadienal (seaweed).
Cinnamon and sugar barely smell alike, yet cooks put them together in 30,779 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
- Chopped almonds
- Provide the main bulk and nutty flavor of the cakes.
- Egg whites
- Bind the mixture together and help it set as it bakes.
- Powdered sugar
- Adds sweetness and dissolves easily into the mixture.
- Cinnamon
- Adds warm aroma and flavor to the almonds.
The step that matters
Bake until set. Egg whites set as their proteins coagulate with heat, so underbaking leaves the cakes soft and loosely bound, while overbaking can dry them out and darken the surface.
“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.
More rock cakes recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Cinnamon Rolls71 recipes
Cinnamon Cake42 recipes
Almond Sponge Cake26 recipes
Almond Custard22 recipes