Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
1 large can Pet milk
3 egg yolks
3 Tbsp. self-rising flour
3 Tbsp. cocoa
2 Tbsp. butter
1 tsp. vanilla flavoring

Preparation

Cook over medium heat, stirring constantly, until thick.
Pour into a baked nine-inch pie shell.
Beat the egg whites.
Fold into 1/3 cup sugar.
Brown in moderate oven.