PREPARE and bake cake mix as directed on package for cupcakes in paper-lined
muffin pan. Cool completely.
MEANWHILE, place 2 cups of the marshmallows, chocolate chunks and milk in
large saucepan; cook on low heat until marshmallows and chocolate are
completely melted and mixture is well blended, stirring constantly. Cool at
least 30 minutes. Gently stir in whipped topping.
FROST cupcakes with whipped topping mixture; sprinkle with remaining 2 cups
marshmallows and cocoa. Cover. Refrigerate until ready to serve.