Prepare Graham Cracker Pie Crust according to recipe directions.
Beat together powdered sugar, cream cheese, butter, vanilla and pumpkin pie spice in large mixing bowl at medium speed, 1 to 2 minutes until fluffy.
Add pumpkin; blend well. Spoon into pie crust.
Chill overnight. Serve with whipped cream, as desired.
One-half teaspoon cinnamon, 1/4 teaspoon nutmeg, 1/8 teaspoon ginger and 1/8 teaspoon cloves can be substituted for pumpkin pie spice.
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