Queen Of Pies - cooking recipe

Ingredients

3 3/4 c. sugar
1 c. flour
few grains salt
juice and rind of 3 lemons
6 eggs, separated
3 c. boiling water
3 Tbsp. butter
2 baked 9-inch pie shells

Preparation

Stir together sugar, flour and salt in saucepan.
Blend egg yolks and water; gradually stir into sugar mixture.
Cook over medium heat, stirring constantly, until mixture thickens and boils. Boil and stir 1 minute.
Remove from heat and stir in butter, lemon rind and juice.
Pour into baked pie shells.