Tabitha's Granny's Chocolate Meringue Pies

Crust
1egg
water
2 cups flour
1 cup butter
Filling
3 cups sugar
1 1/4 cup cocoa
1/4 - 1/2 cup flour
3 1/2 cup milk
1/4 cup butter
1 TB vanilla
Meringue
3 egg whites
1/4 cup sugar
1/4 tsp vanilla

For Crust: Break egg into 1/2 cup measuring cup and fill the rest up with water. Cut butter into flour. Add water and egg. Mix lightly. Press dough into two 9-inch pie plates. Prick bottoms and sides of crusts. Bake at 425 deg F for 8 minutes. Let cool.
For Filling: Mix sugar, flour, and cocoa. Add milk. Stir in egg yolks, butter, and vanilla. Cook over medium-high heat, stirring constantly, until smooth and thick. Pour into baked pie shells.
For Meringue: Beat egg whites until stiff. Add sugar and vanilla gradually. Put on pies, sealing all sides. Bake at 400 deg F. until slightly browned.