Using your knife, cut the top and bottom off of your fresh pineapple, then slice off the exterior skin. Slice around the core of the pineapple and discard the core. Cut slices into evenly sized cubes.
Place the cut pineapple into a storage container or Ziploc bag.
Pour the Fireball over the pineapple, generously sprinkle with ground cinnamon, and close the lid.
Lightly shake and move the container around so that the Fireball evenly saturates the pineapple.
Place the pineapple in the fridge for at least 2 to 3 hours or overnight before serving. The longer they soak, the boozier they will be!
Strain the excess liquid from the pineapple with a strainer. Return the pineapple to the container or bag to store, or place it on a platter for serving.
If serving at a party, put a toothpick into each chunk and arrange on a platter, or literally just eat them with your fingers right out of the container. They're that good!
