Preheat oven to 325F. Line the bottom of a 9" spring form pan with parchment paper; set aside.
In a small mixing bowl, mix together crushed gingersnap, melted butter, and sugar until evenly mixed and slightly wet.
Press gingersnap crumb mixture evenly into the bottom of the pan. Bake for 10 minutes.
Add pumpkin puree, cinnamon, nutmeg, and allspice to a separate medium mixing bowl. Whisk until all ingredients are combined.
In a separate large mixing bowl beat cream cheese and sugar on medium speed until combined.
Add eggs one at a time, beating for 30 seconds in between each egg. Add the egg yolk and continue to beat until fully incorporated.
Mix in 1 teaspoon of vanilla extract.
Add the pumpkin mixture to the cream cheese mixture and beat on low speed for 1-2 minutes until the filling is smooth and creamy.