Bake cake according to package directions and set aside to cool completely Prepare chocolate pudding according to package directions. Fold a little of the chocolate syrup into the Cool Whip until it turns a light chocolate color. Return to the refrigerator. If candy bar is used, grate the candy bar and set aside. Break apart or crumble the cooled cake.
Layer all ingredients as follows:
A layer of crumbled cake, squeeze chocolate syrup onto layer a layer of chocolate pudding and a layer of the chocolate Cool Whip.
Repeat the layering. Garnish with chocolate chips or grated candy bar. Refrigerate until ready to serve.
Cajun Country -- New Iberia, Louisiana