Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
dash of salt
3 Tbsp. cocoa
3 egg yolks
1 Tbsp. vanilla
2 c. milk
2 Tbsp. flour or cornstarch
almost 1/2 stick butter

Preparation

Mix flour, sugar and cocoa.
Add a little milk, egg yolks and vanilla.
Mix well, then add the rest of the milk.
Cook until thickens.
Beat egg whites until stiff.
Add vanilla and 1/4 cup sugar.
Beat until real stiff.