The Best Cinnamon Coffee I Ever Made

I love the taste of cinnamon with coffee.  It's been some time since I bought a flavored coffee like Hazelnut Vanilla but every now and then, I could add a hint of cinnamon to just about any coffee.The problem I've always had is that aside from some new medicinal cinnamon I hear about, it is not water-soluble, so you can imagine the trial and error I've enjoyed in trying to make my own cinnamon coffee without resorting to a sub-par coffee that was sprayed with a cinnamon flavor while it was being roasted.