Broiled Pineapple with Rum Sauce

FOR THE PINEAPPLE:
Preheat the broiler. In a bowl, combine the sugar and cinnamon. Arrange the pineapple on a broiler tray and sprinkle the top with half of the sugar-cinnamon mixture. Broil for 5 minutes, or until the pineapple is lightly browned. Turn the pineapple over, sprinkle with the remaining sugar-cinnamon mixture, and broil for 5 minutes longer, or until lightly browned. Place the broiled pineapple on dessert plates.

FOR THE SAUCE:
In a sauté pan over medium heat, melt the butter and brown sugar, then cook for 3 minutes. Add the rum and vanilla. Spoon the sauce on the pineapple and serve.