This part is a little tricky, so take a deep breath and keep your cool.
- Tilt the glass at a 45 degree angle. With a long match or lighter, light the rum on fire. Don't be startled if it lights on fire before the fire touches the rum -- this is normal.
- Return the glass to its vertical position and place it on a flat surface. If you're used a match to light the fire, blow the match out.
- With your hand flat and facing down toward the table, hold the stem of the glass firmly between your index and middle fingers. Moving your hand in a circular motion, swirl the flaming rum in the glass to caramelize the sugar.
- Once the sugar is mostly caramelized, sprinkle the ground nutmeg and cinnamon over the drink. (The spices will flavor the drink and add dramatic sparks to the preparation of your cocktail.)