Vinegar Pie - cooking recipe

Ingredients

2 c. water
1/2 c. cornstarch
1/3 c. cider vinegar
1 1/2 c. sugar
1 Tbsp. butter
1 1/2 tsp. lemon rind
3 egg yolks

Preparation

Mix water, cornstarch and vinegar.
Bring to a boil for 3 minutes.
Reduce heat and stir after it comes to a boil.
Stir in sugar, butter, grated lemon rind and egg yolks.
Pour into baked pie shell and cool. Beat 3 egg whites until stiff.
Add 1/3 cup sugar and 1/4 teaspoon vinegar.