If we were trapped on a desert island, cinnamon is definitely one of the spices we'd want in our magical picnic basket. Cinnamon, or one of its cousins, is used in almost every world cuisine, plus it can do double duty in both desserts and savory dishes. There are literally hundreds of ways it can be used!
True cinnamon comes from the inner bark of a tropical tree related to the bay laurel (of all things!) and is distinguished as Ceylon or Sri Lankan cinnamon. As the bark dries, it curls on itself into those distinctive slender sticks, or "quills." Cinnamon is light reddish-brown in color and highly aromatic. It has a mild and sweet flavor without the robust spiciness of cassia.
As with most spices, whole cinnamon sticks will keep longer and have better flavor than ground cinnamon spice. We keep both in our cupboard for convenience sake. We use whole sticks in braises, for cider or mulled wine, and to infuse milk or simple syrups. The finely ground spice is best for pastries and other desserts, though you can also grind your own using a microplane.
Cinnamon really is found all around the world: Indian curries, Scandinavian pastries, Vietnamese pho, Mexican chili spice mixes, Moroccan tagine - not to mention our apple pies and snickerdoodles! Once you start looking for it, cinnamon is everywhere.
Try it in some of these recipes:
• Ginger Cinnamon Caramels
• Quick Cinnamon Rolls
• Nearly Instant Apple Cinnamon Mini-Tarts
• Chicken Stewed with Tomatoes, Cinnamon, and Preserved Lemon
• Simplest Lamb Stew
• Cincinnati Chili
Where do you like to use cinnamon the most?
Related: Store Review: Penzeys Spices
(Image: Flickr member S. Diddy licensed under Creative Commons)
TW Salt Mill by Wil...

I adore cinnamon, and I like it most in simple things like apple pie or cinnamon toast. I also like to mix some in with the coffee grounds when I make coffee.
A rather odd use... recommended to my husband by a coworker years ago: cinnamon sticks can help with the effort to stop smoking. Carry around a "pack" of cinnamon sticks and chew on one instead of smoking a cigarette to help with the hand-to-mouth habit/fixation (it won't help the nicotine cravings). Cinnamon sticks are about the same size and weight as a cigarette, plus you can "draw" through them. Added bonuses - you get the great health benefits of cinnamon and nice breath!
Not saying this will work for everyone, but it certainly helped my husband stop smoking.
I would definitely not want cinnamon on my desert island.
It's a nice touch in mussaka.
This recipe makes wonderful salty-sweet crunchy cookies that really highlight the cinnamon flavor:
http://www.seriouseats.com/recipes/2009/12/serious-cookies-swiss-cinnamon-crisps-recipe.html
Give them a try -- they're pretty spectacular.