Creating Bourbon Brûlée Pumpkin Pie can be a delightful experience. Follow these steps for a successful outcome:

1. Preheat the Oven: Preheat your oven to 425°F (220°C).
2. Prepare the Pie Crust: Place the unbaked pie crust into a 9-inch pie dish. Crimp the edges as desired and set aside.
3. Mix Dry Ingredients: In a large mixing bowl, combine the granulated sugar, brown sugar, cinnamon, nutmeg, ginger, allspice, and salt. Whisk until well combined.
4. Add Pumpkin and Eggs: Add the pumpkin puree and eggs to the dry mixture. Mix until smooth and well incorporated.
5. Incorporate Cream and Milk: Pour in the heavy cream, whole milk, and bourbon. Stir until everything is well blended.
6. Fill the Pie Crust: Carefully pour the pumpkin filling into the prepared pie crust, smoothing the top with a spatula.
7. Bake: Place the pie in the preheated oven and bake for 15 minutes. Then, reduce the temperature to 350°F (175°C) and continue baking for 35-45 minutes, or until the filling is set and a knife inserted in the center comes out clean.
8. Cool: Remove the pie from the oven and allow it to cool on a wire rack for about 30 minutes.
9. Chill: Once cooled, refrigerate the pie for at least 2 hours to allow the flavors to meld.
10. Brûlée the Top: Before serving, sprinkle an even layer of granulated sugar over the top of the pie. Using a kitchen torch, carefully brûlée the sugar until it melts and turns golden brown. Alternatively, place the pie under a broiler for a few minutes, watching closely to prevent burning.
11. Slice and Serve: Once the top is caramelized, slice the pie into wedges and serve.