Old-fashioned Egg Custard Pie

Description
From my grandmother's collection. Dated 1912.
 * Contributed by Cat's Recipes Y-Group

Ingredients

 * ¼ cup unsalted butter, softened
 * ⅔ cups granulated sugar
 * 2 eggs
 * 3 tablespoons all-purpose flour
 * ¾ cup evaporated milk
 * ¼ cup water
 * 1 teaspoon vanilla extract
 * ½ teaspoon ground nutmeg
 * 1 unbaked pie shell

Directions

 * 1) Cream butter.
 * 2) Gradually add sugar, beating well.
 * 3) Add eggs and flour.
 * 4) Mix well.
 * 5) Stir in milk and water and vanilla.
 * 6) Pour into pie shell.
 * 7) Bake 20 minutes at 400°F then reduce heat to 300°F for 15 more minutes.