Carrie's Flapper Pie

Uncle Walter really liked this pie.

14 honey graham wafers, rolled fine, add 1/2 granulated sugar, 1/2 c melted butter, 1 tsp cinnamon. Mix together and pat into pie tin, saving about 1/2 c mixture for top of pie.
Make filling as follows and put into pie shell.
2 c milk
2 egg yolks
2 T cornstarch
1/4 c granulated sugar
1 tsp vanilla
Beat and cook over heat until thick. Fill pie crust. Beat egg whites stiff and add 3 T powdered sugar and spread on top, put on remaining crumbs and bake in slow over 250 degrees for 20 minutes.
Cool before serving.