Vinegar Pie

1 9" pie crust, baked
2 eggs, yolks separated
1 T. butter
1 c. sugar
2 T. cornstarch
1 c. boiling water
2 T. cider vinegar
1 t. lemon juice

Blend egg yolks, butter, sugar, and cornstarch together in a heavy-bottomed pan. Stir in boiling water and vinegar. Cook over low heat, stirring frequently, until mixture thickens. Then add lemon juice. Pour into the pie shell. Beat egg whites to stiff-peak stage and spread over the pie. Bake in 300 degree oven for 18-20 minutes until meringue is lightly browned.

Makes 1 pie.

Adapted from Old-Fashioned Pie Recipes, p. 25.