Try a glass of hot buttered rum if you're looking for an easy way to spice up your cocktail game, especially during cold winter months. It's simple yet rich and delicious. But be careful--it goes down smooth, so you may want to limit yourself to just one or two. Combine the melted ice cream, rum, melted butter, brown sugar, and cinnamon. Mix well and fill your cup with hot water. Top it with whipped cream and a sprinkle of cinnamon or nutmeg on top for extra flavor.