Melt the butter gently in a large saute pan. Add the brown sugar and stir to combine. Add the cinnamon and cook until the mixture is thick and bubbly. Toss in the bananas.
Turn the heat up to high, pull the pan off the burner and add the rum and tip into the flame to allow the flame to "JUMP" into the pan and set on fire! Do this carefully and respectfully but have fun, it's all about the show.
Spoon over ice cream and try not to eat it all yourself.