Lemon Sponge Pie

Directions

1. 1
   Mix the sugar and flour together and add the lemon juice and rind, slightly beaten egg yolks, butter and salt.
2. 2
   Stir in the milk and mix well.
3. 3
   Beat the whites until stiff and fold into the first mixture.
4. 4
   Pour into 9-inch unbaked pie crust.
5. 5
   Bake in hot oven (425°) for 5 minutes.
6. 6
   Turn oven back to 350° and bake until the mixture will not adhere to the point of a knife inserted in the center or about 25 minutes longer.