While the crust par bakes, process cooled sweet potatoes in a food processor until smooth. Add heavy cream, butter, eggs, bourbon, brown sugar, granulated sugar, nutmeg, cinnamon, and sea salt then or pulse until uniform, pausing to scrape down sides of bowl as necessary.
¼ cup heavy cream, 6 tablespoons butter, 2 eggs, 2 tablespoons bourbon whiskey, ½ cup brown sugar, ½ cup granulated sugar, 1 teaspoon Nutmeg, ½ teaspoon cinnamon, ½ teaspoon sea salt