Lemon Sponge Pie

Directions

1. 1
   Cream sugar and shortening.
2. 2
   Add egg yolks and mix well.
3. 3
   Add lemon rind and juice.
4. 4
   Add flour.
5. 5
   Mix; add milk.
6. 6
   Beat egg whites until very stiff and fold into mixture.
7. 7
   Put into 2 unbaked 9-inch pie shells and bake 10 minutes at 400°, then 30 minutes at 350° on lower oven rack.