In a mixing bowl, combine the pumpkin, sugar, salt, ginger, and nutmeg. Add the eggs, milk, rum, and cream and blend well.
Pour the mixture into the pastry-lined pie plate and bake for 15 minutes. Reduce the temperature to 350 degrees and bake30 to 40 minutes longer, or until set. If desired, serve with whipped cream sweetened to taste and flavored with dark rum.