Butterscotch Pie

1 cup sugar
2 eggs
2 Tbsp. flour
1 cup cold water
2 Tbsp. butter
1 tsp. vanilla

Mix sugar and flour together, add water gradually and stir over fire until thick. Add beaten egg yolks and butter, then vanilla. Fill baked crusts, beat the whites of eggs to a stiff froth, add 2 Tbsp. sugar. Put this on top of pie and brown in a slow oven.