First heat your cider in a pan on a stove. Put in one or two sticks of cinnamon. You could use the powdered kind, but that's not fun.

Be careful not to burn the cider, or let it boil ove, which it will the moment you stop paying attention!

Then add your rum, 1 in 3 or 4 parts is about right, we make this in big batches so it's hard to say. There you have it! Warming alcohol can sometimes change how much and how fast alochol hits some people, just so you know...