Preheat oven to 350ºF. Whisk together pumpkin, eggs, brown sugar, cream, vanilla, and bourbon in a large bowl. In a separate bowl, whisk together sugar, cornstarch, cinnamon, nutmeg, ginger and salt. Add cream cheese and beat with an electric mixer on high until creamy. Reduce speed and add pumpkin mixture. Pour filling into crust, smoothing top. Bake until center is set, 50 to 60 minutes. LEAVE OVEN ON. Transfer to a rack to let cool while making the topping (about 5 minutes).