Vinegar Pie

Directions

1. 1
   Combine flour and 1/2 cup sugar in double boiler.
2. 2
   Stir in 1 cup boiling water.
3. 3
   Cook for 15 minutes.
4. 4
   Stir in 1 cup boiling water.
5. 5
   Cook for 15 minutes, stirring frequently.
6. 6
   Add remaining 1/2 cup sugar and egg yolks.
7. 7
   Cook until thickened, stirring frequently.
8. 8
   Add butter and vinegar.
9. 9
   Pour into pie shell.
10. 10
    Cover with meringue, sealing to edge.
11. 11
    Bake at 400° for several minutes, or until brown.