Butterscotch Pie

Directions

1. 1
   Mix flour,
2. 2
   sugar
3. 3
   and egg
4. 4
   yolks
5. 5
   with milk in top of double boiler and cook 10 minutes over boiling water.
6. 6
   Remove from heat and
7. 7
   add
8. 8
   butter
9. 9
   and vanilla.
10. 10
    Pour into baked pie shells and add
11. 11
    whipped egg whites on top.
12. 12
    Return to oven to brown lightly.