In a large bowl, beat the softened cream cheese with the sour cream until smooth. Add the brown sugar and granulated sugar and mix until combined. Add in the eggs one at a time mixing in between then add the molasses, vanilla extract, ground ginger, ground cinnamon, ground nutmeg, flour, and salt. Beat until well combined and creamy.
16 ounces 2 packages cream cheese, softened, ⅓ cup sour cream, ⅓ cup granulated sugar, ½ cup dark brown sugar, 2 large eggs, 1 tablespoon molasses, 1 teaspoon vanilla extract, 1 teaspoon ground ginger, 1 teaspoon ground cinnamon, ¼ teaspoon ground nutmeg, 2 tablespoons all-purpose flour, ¼ teaspoon salt