In a bowl, whisk together the brown sugar, cornstarch, salt, cinnamon, ginger, nutmeg and cloves. Add the pumpkin, eggs, cream and milk and whisk to combine.
Pour the filling into the prebaked piecrust and bake until the center is set, 60 to 65 minutes, covering the edges of the crust with aluminum foil after 30 minutes if they brown too quickly. Transfer the pie to a wire rack and let cool completely, at least 2 hours, before serving.