Prepare Nif's Chocolate Crepe Batter #354547 and keep warm.

In a saucepan, combine cocoa, cornstarch, and sugar.

Add a small amount of milk and blend until smooth.

Gradually add the remaining milk, mixing constantly to avoid lumps.

Place the saucepan over medium heat and cook, stirring continuously, until the mixture thickens.

Stir in the chopped walnuts.

Fill each chocolate crepe with the chocolate nut mixture.

Roll up the filled crepes.

Place the crepes on dessert plates.

Serve immediately with whipped cream and shaved dark chocolate.