This is an all American way to celebrate Halloween or, if you like pumpkin any time of year, celebrate your ability to infuse bourbon with pumpkin. I made this last year and it was quite popular. Here's how you do it:
1 750 milliliter bottle of bourbon
1/2 cup pumpkin puree (I used Trader Joe's organic pumpkin)
1 teaspoon each of cinnamon, ginger powder, and nutmeg
Combine everything into a sealed glass container, wait for 3-7 days, then filter. I used basic coffee filters that you can get in the grocery store.
Enjoy your liquid Halloween treat!