Ingredient

Cinnamon

Most of what is sold as cinnamon is cassia — a related bark that is stronger, hotter and cheaper. It is not a fake, but it is a different spice, and knowing which one you have explains a good deal about why your baking tastes the way it does.

Cassia and Ceylon

Cassia
Thick, hard, dark red-brown bark that curls from one side only. Strong, hot, sweet and assertive. Almost all supermarket cinnamon. The right choice for cinnamon buns, apple pie and anything where you want it to shout.
Ceylon / "true" cinnamon
Thin, brittle, pale tan, made of many fine layers rolled together like a cigar. Delicate, floral, more complex. Better where it is the star and worse where it needs to carry a heavy bake.
Telling them apart
Look at the stick. Cassia is one thick curl you could not snap easily; Ceylon crumbles between your fingers and shows many layers in cross-section.
Ground
Almost impossible to distinguish visually. Ceylon is usually paler and always more expensive.

Sticks or ground

Cinnamon in savoury cooking

In much of Britain and North America cinnamon reads as a dessert spice, which is a narrow view of it. In Moroccan, Turkish, Persian, Mexican, Indian and Greek cooking it is a savoury spice as much as a sweet one, and one of the most useful.

A stick in a lamb tagine, a beef stew, a tomato sauce for pastitsio, a biryani or a mole gives warmth and a faint sweetness that makes the meat taste richer without tasting of pudding. The trick is restraint: one stick, or a quarter-teaspoon of ground, in a dish for four. Enough to notice something and not enough to identify it.

Pairings that work

Cassia and true cinnamon

Most of what is sold as cinnamon in Britain is cassia, and they are different spices.

Cassia
Dark reddish-brown, thick hard quills that curl from one side only. Strong, sweet, slightly harsh. What most ground cinnamon is.
Ceylon (true) cinnamon
Pale tan, thin brittle layers rolled like a cigar. Milder, more complex, faintly citrusy. More expensive.
Which to use
Cassia stands up to baking and strong flavours. Ceylon is better where cinnamon is the lead note — in a custard, a rice pudding or a delicate cake.
Ground goes stale fast
Like every ground spice. Whole quills keep for a year or more; ground cinnamon fades within months.
A note on coumarin
Cassia contains more of it than Ceylon cinnamon, and there is public health guidance about very high habitual intakes. Ordinary culinary use is a different matter; for anything specific, follow current food-safety advice rather than a cooking site.

Common questions

Is Ceylon cinnamon worth the extra?

Where you taste it directly — a custard, a delicate cake, a hot chocolate — yes. In a heavily spiced bake, cassia is stronger and arguably better suited.

Why does my cinnamon taste of nothing?

Ground cinnamon loses its volatile oils within months. Buy small quantities more often.

Can I substitute sticks for ground?

Not directly. A stick in a dry mixture contributes nothing; ground in a long-simmered liquid goes gritty. Match the form to the dish.

Is there a health reason to prefer Ceylon?

Cassia contains a compound called coumarin in higher quantities, and some food safety bodies publish guidance about that. FoodHQ does not publish health guidance — check the relevant authority if this matters to you.

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