Orange Pie - cooking recipe

Ingredients

1 c. sugar
6 Tbsp. flour
1/4 tsp. salt
grated rind of 1 orange
1 c. orange juice
juice of 1/2 lemon
2 Tbsp. butter or margarine
3 egg yolks
1 baked pie shell
3 egg whites
3 Tbsp. sugar

Preparation

Combine 1 cup sugar, flour, salt and grated rind.
Add juices. Cook in double boiler until thick.
Stir constantly.
Add butter and slightly beaten egg yolks.
Cook for 2 minutes.
Pour into baked shell.