Preheat oven to 350 degree F. Grease a 9-inch spring-form pan.
To make crust:
In a food processor fitted with the metal blade, combine the nuts, sugar, crackers and spices.
Process until finely ground.
Add the melted butter and continue to process until the mixture is moist and sticks to the sides of the processor bowl.
Gather the mixture together and place in the center of a 9-inch spring-form pan. Using your fingertips, gently press the crumb mixture evenly over the bottom and half-way up the sides.
To make the filling:
Beat the goat cheese and sugar on low.
Add the cream cheese and beat 1 minute on low.
Add the pumpkin, sour cream, eggs and vanilla and beat on low 20 minutes (that's right, I'm not kidding!).
Pour the mixture into the prepared spring form pan. Place on a baking sheet, just in case the filling leaks a little.
Bake 1 hour or until springs back when lightly pressed.
Remove from the oven and place on wire rack to cool completely.
Refrigerate at least 5 hours. Bring to room temperature.
Serve with fresh berries, fruit sauce, or our favorite, lavender syrup.