Preheat oven to 450 degrees F.
Combine sugar, flour, cream, and milk in a mixing bowl. Pour into pie shell. Dot butter bits all around top of pie. Sprinkle with nutmeg. Bake for approximately 10 minutes, and then reduce the heat to 350 degrees F and cook for approximately 30 more minutes. Cool to room temperature and then refrigerate until chilled. Serve chilled.
Note: If using a glass baking dish, lower oven temperature by 25 degrees F.