Cinnamon - it's the food of kings for a reason.
I talked to a naturopath last year who told me "You know all those things that were common in your childhood but they have mysteriously vanished nowadays, like chocolate and cinnamon? They vanished because they are too good for you. Doctors painted them to be poisons and harmful to the human body because they cut down on their patient loads. If you want to be healthy, eat lots of fat and meat and indulge regularly in cocoa. Put cinnamon on anything that it tastes good on and mix garlic into every meal."