Great-Grandmother'S Pie - cooking recipe

Ingredients

1/4 c. cocoa or juice and rind of 2 lemons
1 c. hot water
butter, size of egg
1 c. sugar
1 tsp. vanilla extract
beaten yolks of 2 eggs
2 Tbsp. cornstarch

Preparation

Mix all ingredients well.
Heat, stirring constantly until thickened.
Pour into baked pie shell.
Cover with meringue and brown.