If rimming the cocktail in cinnamon and sugar: Mix the cinnamon (or pie spice) and sugar in a small, shallow dish. Dip the rim of the martini glass in a small, shallow dish of water. Then dip the wet rim into the dish with cinnamon sugar. Gently shake off excees. Set aside.
To a cocktail shaker, add vodka, pumpkin puree, pie spice, half and half, vanilla and maple syrup.
Add ice and shake well.
Strain the Pumpkin Martini into prepared martini glass.
*Nutrition info is slightly off as it is including the full amount of pie spice and sugar from the plate that you rimmed the glasses with.
Don't have canned pumpkin? There are other ways to get pumpkin pie flavors into a martini. Use pumpkin coffee syrup or a pumpkin-flavored liquor like Baileys Pumpkin Pie. (You could probably even try it with pumpkin rum like I use in my Pumpkin Moscow Mule.)
To make this feel more like a dessert cocktail (or if you want to call it a Pumpkin Pie Martini) garnish this drink with a dollop of whipped cream and a sprinkle of cinnamon.
If you want to make this non-dairy, you can use a cream liqueur like RumChata or Baileys.
You can use vanilla vodka but you may want to remove the vanilla extract from the recipe.