- Fill a cocktail shaker with ice. 
- Add vanilla vodka, Irish cream liqueur, pumpkin spice liqueur, and half and half. 
- Shake vigorously for about 15-20 seconds. 
- Strain into a chilled martini glass. 
- Top with a dollop of whipped cream. 
- Sprinkle with pumpkin pie spice and garnish with a cinnamon stick if desired.